Is $90 for bleeding from a tuner shop consider as 70% of the pay? A G driver highly recommended me to go to that shop.

 

Your dot 3 is only 1 day old?

 

dot 4. They just bleed my brake yesterday.

 

LOL!

I've asked this before. How old is your DOT 3? If it's older than 1 year, you should have had them just flush. I have no idea how that guy got 70% new / 30% old. If it was like that, they should have just finished the flushing.

At this point, (if you DOT 3 ins't older than 2 years) just leave it and do a full flush next year.

 

Thanks, Jeff. How much is a regular full flush anyway?

 

Apparently $90 or so

 

Who's on first?

 

??? i had dot 3 first. Then just got dot 4 yesterday.

 

yea yeah my infos mixed -__-

do NOT mix fluids!! you can do so but if its my own car I wouldnt do it unless it was an emergency! Dot 3 should NEVER be mixed with Dot 4..

like Mike said.. would you put in 5w20 in your motor.. ehh yeah if I my dipstick wasnt picking up anything and theres nothing around.. but aside from that why would you ever mix 5w20 with 10w30??

Also I'm pretty sure that if you mix dot 3 with dot 4 the boiling point is LOWER then dot 3..

- Eric

 

damnit!!! That's hella gay. What should I do now? Go back and ask them to do a full flush again? Or should I just ask for money back? I paid full price for this service, somehow I feel like i don't get the most of it. This is not a getto shop, it's somewhat well-known in SF, CA.

 

Why would they just 'top off' your brake fluid? Old fluid should always be REPLACED with a major service.

 

DOT 4 is backwards compatible with DOT 3. If you track your car, it might make a difference mixing DOT 3 and DOT 4. Otherwise, for normal street use, your brake fluid will be fine.

I agree with Jeff that your fluid should be exchanged if it's over a year old, but it seems that the mechanic already exchanged the fluid with DOT 4.

 

What is your explanation for this? If you mixed new dot3 with new dot4 you would just get a fluid that performs somewhere in the middle, they use the same base materials, the ratios and additives are the only thing different. If you mixed 5w20 with 10w30, you would just get something in the 7w25 range. I mix 5w30 and 10w30 all the time depending on the season and temperatures, brake fluid would be no different. The only problem I have is that the OP's mechanic didn't flush all the old fluid out. It doesn't matter that dot3 is mixed with dot4, they are just standards for a product

 

I am talking to the Gdriver who works over there and hoping they will do a full flush my brake. I may end up have to buy a new bottle of dot 4 brake fluid.

 

If the mechanic screwed up he should pay for the fluid and do the flush free since you already paid him to do it. If he doesn't I would start a thread naming the shop and the mechanic and warn others.