Can I Use Dot 3 Brake Fluid In My Harley Info

Can I Use Dot 3 Brake Fluid In My Harley. I used dot 4 recently when i fitted 3 inch extension kit to my forward controls. Mixing the two types of brake fluids can cause brake failure. Are all dot 4 brake fluids compatible? Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. Dot 3 & dot 4 are gycol based brake fluid & dot 5 is a silicone based fluid. Once you get back home though you need to get the recommended. Can i use dot 3 brake fluid in my harley? Dot 5 is silicon based and does not absorb moisture. That’s a lot of responsibility, and some fluids are more responsible than others. Can i use dot 4 brake fluid in a dot 3 braking system? Can i use dot 4 brake fluid in a motorcycle? However, dot 4 offers a higher boiling point. Dot 5 fluid is silicon based, also synthetic, and as stated you cannot mix the two. Stated on the mastercylinder cap was use dot 4 only. I'm glad you found your problem.

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Can I Use Dot 3 Brake Fluid In My Harley

Dot 5 is silicon based and does not absorb moisture. If the system has had 3 or 4 in it for a long time, then you need to flush with fresh 4 or 5 then alcohol. The dot numbers are for fluid standards and testing, not fluid make up. I personally have never had a problem with dot 3, i have even brought field cars home got them running topped them off and drove them. If you bike is spec'd for dot 4 , dot 3 and 4 are hydraulic since all brake systems are hydraulic in nature. Yes, you can as dot 4 brake fluid oil can work perfectly in such engines. However, dot 4 offers a higher boiling point. Beside above, can you use dot 4 brake fluid? On a side note do not use dot5 if you have abs. Dot 5 silicon brake fluid. Use glycol dot 3 fluid if you have a vacuum booster. Dot 5 is known to permit the water to collect in calipers and other places more than dot 3, 4. Dot 3, 4, and 5.1 fluids are glycol based and can be mixed together, but dot 5 fluid is silicone based and can’t be mixed with any other type of fluid. Mine is one of them. Can i use dot 4 brake fluid in a motorcycle?

If you bike is spec'd for dot 4 , dot 3 and 4 are hydraulic since all brake systems are hydraulic in nature. Supposedly it has to do with the boiling point. Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. Dot 3 doesn't have the corrosion inhibitors that dot 4 has so i'd not bother with it. Otherwise they are the same. (edited for clarification) one good reason for hd using dot 5 is that it doesn't eat paint. I personally have never had a problem with dot 3, i have even brought field cars home got them running topped them off and drove them. Dot 3, 4, 5, and 5.1. Yes, dot 3 brake fluid is compatible with dot 4 brake fluid. Majority of motorcycles will use dot 3 or dot 4. Their chemical structure inhibits them from ever becoming compatible & as a matter a fact the silicone used in dot 5 can & will attack any rubber component which is not compatible with. Stated on the mastercylinder cap was use dot 4 only. Dot 5 is silicon based and does not absorb moisture. I just found it in my manual and it states warning harley davidson specifies dot 3 brake fluid for models produced proior to september, 1976 and dot 5 for later models. I even asked my local bike shop which one to use, and they said check what it says on the master cylinder. After it absorbs enough moisture to have 8 percent water content, the boiling point drops to that of water, around 100 degrees celsius/212 farenheit. Hd went from 5 to 4 when they offered abs on their bikes. I use dot 4 in my harley, the new bikes say dot 5 but mine came with dot 4. The reservoir cap on master cylinder should also state the type of fluid that can be used. Most folks know they aren't supposed to top off dot 3 or 4 brake fluids with dot 5, but don't know why. The answer goes back to the chemistry.

Are all dot 4 brake fluids compatible? The reservoir cap on master cylinder should also state the type of fluid that can be used. Yes, dot 3 brake fluid is compatible with dot 4 brake fluid. Dot 5 is known to permit the water to collect in calipers and other places more than dot 3, 4. After it absorbs enough moisture to have 8 percent water content, the boiling point drops to that of water, around 100 degrees celsius/212 farenheit. I just found it in my manual and it states warning harley davidson specifies dot 3 brake fluid for models produced proior to september, 1976 and dot 5 for later models. Dot 3 doesn't have the corrosion inhibitors that dot 4 has so i'd not bother with it. Dot 4 would be the best choice here it has a higher boiling point f the manual is saying small amounts of dot3 can be used, what they are most likely saying is if you find yourself with low brake fluid and only dot3 is available, it is better to use that than to not have brake fluid. I'm glad you found your problem. If the system has had 3 or 4 in it for a long time, then you need to flush with fresh 4 or 5 then alcohol. If your bike calls for dot5, don't use dot 3 or 4 to flush with. I use dot 4 in my harley, the new bikes say dot 5 but mine came with dot 4. Beside above, can you use dot 4 brake fluid? Their chemical structure inhibits them from ever becoming compatible & as a matter a fact the silicone used in dot 5 can & will attack any rubber component which is not compatible with. The dot numbers are for fluid standards and testing, not fluid make up. Dot 5 silicon brake fluid. However, dot 4 offers a higher boiling point. Use glycol dot 3 fluid if you have a vacuum booster. Use glycol dot 3 fluid to avoid an engine disaster. If you changed all the fluid out and dot 3 or 4 wasn't in there long, ride for a week or so and bleed again, with new dot 5 and you'll be ok. Thanks to everyone for the input.

Can i use dot 4 brake fluid in a motorcycle?

Any potential good from silicone is far outweighed by massive engine problems if it gets past the booster seals. Brake fluid is available in four grades: Mine is one of them.

Are all dot 4 brake fluids compatible? Any potential good from silicone is far outweighed by massive engine problems if it gets past the booster seals. Yes, you can as dot 4 brake fluid oil can work perfectly in such engines. You can use automotive brake fluid in a motorcycle. Dot 5 is silicon based and does not absorb moisture. Apparently your fluid was contaminated with moisture. All brake fluid is synthetic, it's just not been advertised as such until recently. There will be a significant boost provided in terms of stopping power and smoothness while applying the brakes. Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. Dot 3, 4, and 5.1 fluids are glycol based and can be mixed together, but dot 5 fluid is silicone based and can’t be mixed with any other type of fluid. Thanks to everyone for the input. Many harley's went to dot4 in 2006. I just found it in my manual and it states warning harley davidson specifies dot 3 brake fluid for models produced proior to september, 1976 and dot 5 for later models. Majority of motorcycles will use dot 3 or dot 4. Can i use dot 4 brake fluid in a motorcycle? The dot numbers are for fluid standards and testing, not fluid make up. However, dot 4 offers a higher boiling point. That said, unless you have a something that recommends a specific brake fluid use whatever makes you happy. Best thing to do is replace the brake fluid with dot 5 to be sure of what you have as a mix of 4 and 5 does not work if you have a leak of fluid around the sight glass then if glycol based fluid dot 3 or 4 then the paint that the fluid touches would blister and peel if there is no blistering of the paint then i would assume that dot 5 is in the brake system Dot 5 silicon brake fluid. What is the shelf life of a quality dot 4.

Dot 3 doesn't have the corrosion inhibitors that dot 4 has so i'd not bother with it.

Dot 3 and 4 are glycol based, not petroleum based, and thus are synthetic. Most folks know they aren't supposed to top off dot 3 or 4 brake fluids with dot 5, but don't know why. Dot 3, 4, 5, and 5.1.

I'm glad you found your problem. All brake fluid is synthetic, it's just not been advertised as such until recently. Can i use dot 4 brake fluid in a motorcycle? Majority of motorcycles will use dot 3 or dot 4. Dot 4 might have a slightly higher boiling point as well. What is the shelf life of a quality dot 4. If your bike calls for dot5, don't use dot 3 or 4 to flush with. If you bike is spec'd for dot 4 , dot 3 and 4 are hydraulic since all brake systems are hydraulic in nature. Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. Dot 3 and 4 are glycol based, not petroleum based, and thus are synthetic. Use glycol dot 3 fluid to avoid an engine disaster. Dot 4 would be the best choice here it has a higher boiling point f the manual is saying small amounts of dot3 can be used, what they are most likely saying is if you find yourself with low brake fluid and only dot3 is available, it is better to use that than to not have brake fluid. All dot 3, 4 and 5.1 brake fluids are compatible with each other and with all systems. You can use automotive brake fluid in a motorcycle. Dot 5 fluid is silicon based, also synthetic, and as stated you cannot mix the two. I have noticed in the past 10 years that some bottles/brands of brake fluid mention in large letters, synthetic as though this is something new or better. I used dot 4 recently when i fitted 3 inch extension kit to my forward controls. All dot 3, 4 & 5.1 are all synthitic. Best thing to do is replace the brake fluid with dot 5 to be sure of what you have as a mix of 4 and 5 does not work if you have a leak of fluid around the sight glass then if glycol based fluid dot 3 or 4 then the paint that the fluid touches would blister and peel if there is no blistering of the paint then i would assume that dot 5 is in the brake system Can i use dot 3 brake fluid in my harley? Many harley's went to dot4 in 2006.

(edited for clarification) one good reason for hd using dot 5 is that it doesn't eat paint.

I personally have never had a problem with dot 3, i have even brought field cars home got them running topped them off and drove them. I have noticed in the past 10 years that some bottles/brands of brake fluid mention in large letters, synthetic as though this is something new or better. Otherwise they are the same.

I'm glad you found your problem. Dot 4 would be the best choice here it has a higher boiling point f the manual is saying small amounts of dot3 can be used, what they are most likely saying is if you find yourself with low brake fluid and only dot3 is available, it is better to use that than to not have brake fluid. Use glycol dot 3 fluid to avoid an engine disaster. The answer goes back to the chemistry. The reservoir cap on master cylinder should also state the type of fluid that can be used. Any potential good from silicone is far outweighed by massive engine problems if it gets past the booster seals. I just found it in my manual and it states warning harley davidson specifies dot 3 brake fluid for models produced proior to september, 1976 and dot 5 for later models. Majority of motorcycles will use dot 3 or dot 4. All brake fluid is synthetic, it's just not been advertised as such until recently. On a side note do not use dot5 if you have abs. Hd went from 5 to 4 when they offered abs on their bikes. Brake fluid is available in four grades: The dot numbers are for fluid standards and testing, not fluid make up. Thanks to everyone for the input. Best thing to do is replace the brake fluid with dot 5 to be sure of what you have as a mix of 4 and 5 does not work if you have a leak of fluid around the sight glass then if glycol based fluid dot 3 or 4 then the paint that the fluid touches would blister and peel if there is no blistering of the paint then i would assume that dot 5 is in the brake system I used dot 4 recently when i fitted 3 inch extension kit to my forward controls. Use glycol dot 3 fluid if you have a vacuum booster. Dot 5 silicon brake fluid. Can i use dot 4 brake fluid in a dot 3 braking system? (edited for clarification) one good reason for hd using dot 5 is that it doesn't eat paint. Dot 5 is silicon based and does not absorb moisture.

Thanks to everyone for the input.

Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. There will be a significant boost provided in terms of stopping power and smoothness while applying the brakes. The department of transportation (dot) classifies brake fluid as follows:

Use glycol dot 3 fluid if you have a vacuum booster. Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. Can i use dot 3 brake fluid in my harley? However, dot 4 offers a higher boiling point. Dot 5 is known to permit the water to collect in calipers and other places more than dot 3, 4. Dot 3 doesn't have the corrosion inhibitors that dot 4 has so i'd not bother with it. Their chemical structure inhibits them from ever becoming compatible & as a matter a fact the silicone used in dot 5 can & will attack any rubber component which is not compatible with. Are all dot 4 brake fluids compatible? Once you get back home though you need to get the recommended. All dot 3, 4 and 5.1 brake fluids are compatible with each other and with all systems. That said, unless you have a something that recommends a specific brake fluid use whatever makes you happy. If your bike calls for dot5, don't use dot 3 or 4 to flush with. After it absorbs enough moisture to have 8 percent water content, the boiling point drops to that of water, around 100 degrees celsius/212 farenheit. I personally have never had a problem with dot 3, i have even brought field cars home got them running topped them off and drove them. Most folks know they aren't supposed to top off dot 3 or 4 brake fluids with dot 5, but don't know why. Otherwise they are the same. All dot 3, 4 & 5.1 are all synthitic. Dot 5 fluid is silicon based, also synthetic, and as stated you cannot mix the two. Dot 5 silicon brake fluid. Dot 3 and 4 are glycol based, not petroleum based, and thus are synthetic. Supposedly it has to do with the boiling point.

Dot 4 would be the best choice here it has a higher boiling point f the manual is saying small amounts of dot3 can be used, what they are most likely saying is if you find yourself with low brake fluid and only dot3 is available, it is better to use that than to not have brake fluid.

The reservoir cap on master cylinder should also state the type of fluid that can be used. I did however bleed out all the old brake fluid. You can use automotive brake fluid in a motorcycle.

I used dot 4 recently when i fitted 3 inch extension kit to my forward controls. Best thing to do is replace the brake fluid with dot 5 to be sure of what you have as a mix of 4 and 5 does not work if you have a leak of fluid around the sight glass then if glycol based fluid dot 3 or 4 then the paint that the fluid touches would blister and peel if there is no blistering of the paint then i would assume that dot 5 is in the brake system Dot 3 and 4 are glycol based, not petroleum based, and thus are synthetic. Supposedly it has to do with the boiling point. Is automotive and motorcycle brake fluid the same? Use glycol dot 3 fluid if you have a vacuum booster. On a side note do not use dot5 if you have abs. However, dot 4 offers a higher boiling point. The reservoir cap on master cylinder should also state the type of fluid that can be used. The department of transportation (dot) classifies brake fluid as follows: Dot 3 doesn't have the corrosion inhibitors that dot 4 has so i'd not bother with it. What is the shelf life of a quality dot 4. Check out the best dot 3 brake fluid for your vehicle. There will be a significant boost provided in terms of stopping power and smoothness while applying the brakes. Dot 4 might have a slightly higher boiling point as well. Majority of motorcycles will use dot 3 or dot 4. All dot 3, 4 and 5.1 brake fluids are compatible with each other and with all systems. Thanks to everyone for the input. If you bike is spec'd for dot 4 , dot 3 and 4 are hydraulic since all brake systems are hydraulic in nature. Dot 5 is silicon based and does not absorb moisture. Dot 5 fluid is silicon based, also synthetic, and as stated you cannot mix the two.

Dot 3 & dot 4 are gycol based brake fluid & dot 5 is a silicone based fluid.

I even asked my local bike shop which one to use, and they said check what it says on the master cylinder. After it absorbs enough moisture to have 8 percent water content, the boiling point drops to that of water, around 100 degrees celsius/212 farenheit. Beside above, can you use dot 4 brake fluid?

Otherwise they are the same. Dot 3 doesn't have the corrosion inhibitors that dot 4 has so i'd not bother with it. You can use automotive brake fluid in a motorcycle. Can i use dot 3 brake fluid in my harley? The answer goes back to the chemistry. Beside above, can you use dot 4 brake fluid? On a side note do not use dot5 if you have abs. What is the shelf life of a quality dot 4. Apparently your fluid was contaminated with moisture. Mine is one of them. All dot 3, 4 and 5.1 brake fluids are compatible with each other and with all systems. I did however bleed out all the old brake fluid. The dot numbers are for fluid standards and testing, not fluid make up. However, dot 4 offers a higher boiling point. Yes, you can as dot 4 brake fluid oil can work perfectly in such engines. Im gonna look to make sure but im pretty sure that after 76 that they all used dot 5. Dot 4 would be the best choice here it has a higher boiling point f the manual is saying small amounts of dot3 can be used, what they are most likely saying is if you find yourself with low brake fluid and only dot3 is available, it is better to use that than to not have brake fluid. That’s a lot of responsibility, and some fluids are more responsible than others. Dot 4 might have a slightly higher boiling point as well. Check out the best dot 3 brake fluid for your vehicle. Brake fluid is available in four grades:

Btw, discount drugmart is selling the synpower fluid for $2.29 a bottle.

Hd went from 5 to 4 when they offered abs on their bikes.

Majority of motorcycles will use dot 3 or dot 4. If you bike is spec'd for dot 4 , dot 3 and 4 are hydraulic since all brake systems are hydraulic in nature. Dot 5 fluid is silicon based, also synthetic, and as stated you cannot mix the two. You can use automotive brake fluid in a motorcycle. Last night i flushed out the old fluid and put on the speedbleeders and the synpower fluid and the brakes are better than before. All dot 3, 4 & 5.1 are all synthitic. All dot 3, 4 and 5.1 brake fluids are compatible with each other and with all systems. I'm glad you found your problem. Any potential good from silicone is far outweighed by massive engine problems if it gets past the booster seals. I use dot 4 in my harley, the new bikes say dot 5 but mine came with dot 4. Mine is one of them. Yes, you can as dot 4 brake fluid oil can work perfectly in such engines. Stated on the mastercylinder cap was use dot 4 only. Hd went from 5 to 4 when they offered abs on their bikes. Many harley's went to dot4 in 2006. There will be a significant boost provided in terms of stopping power and smoothness while applying the brakes. What is the shelf life of a quality dot 4. That said, unless you have a something that recommends a specific brake fluid use whatever makes you happy. Can i use dot 4 brake fluid in a dot 3 braking system? Otherwise they are the same. Can i use dot 3 brake fluid in my harley?