- 09-02-14 06:46 PM #1
My dealer said that you don't have to change the brake fluid in my car until 100k.........so I'm changing my brake fluid.....doesn't seem right to me. Anyway I'm planning to put high heat brake fluid in just because I can, and braided steel hoses to firm up the pedal a bit and started wondering if I should replace oil and tranny and diff fluid with synthetic while motor and trans are young as far as wear. What are the benefits if any?
- 09-02-14 08:22 PM #2
Your car should already have DEX VI (synthetic) in it.
The main advantage of synthetic oil is that it's able to withstand higher temperatures. Super charger, turbo, nitrous, highly modified/high revving N/A engine? It's necessary. Your Nodthstat? No.
Synthetics also have a higher detergent level, and are able to suspend more crankcase deposits. Unless you have excessive blow by, or don't change the oil even the OLM tells you to, it's unnecessary.
Synthetics also don't become much more viscous at EXTREMELY low temperatures. Love in Antarctica? No? Then not necessary.
Use the recommended oil for your engine, change it when the OLM tells you to, and you'll be fine. Try finding one post about a Northstar failing due to a lubrication related issue (other than someone running it out if oil). You won't.
- 09-02-14 09:26 PM #3
Re: Synthetic fluids
Much ado about nothing ............... Whatever floats your boat.
Yes, All GM changed to DEXRON-VI in mid-2006 for all new and prior transmission servicing. FWIW, as far as GM is concerned, DEXRON-III is obsolete.
In today's average U.S. mileage driving, 100K is just over 5 - 6 years or so - and brake fluid simply LOVES to suck up moisture, so it makes good sense to do a complete brake flud exchange every 5 years or so.
- 09-02-14 09:53 PM #4
Re: Synthetic fluids
Here we go again
- 09-02-14 10:43 PM #5
This thread wasn't meant to relive what's the best brand or weight, it simply to see if there were up sides to synthetics. Mostly the question was about tranny and the differential and if there were actual differences. Not opinion..... Fact. NOT ABOUT MOTOR OIL.
I get it, it will make me feel better so I will be changing out the fluids.
Thx for the feedback.
- 09-02-14 10:47 PM #6
There are thus far no opinions stated in this thread.
Correct/best trans fluid for your car - DEXRON VI, any brand.
Correct/best motor oil for your car - 5W-30, any type, any brand.
Go pick one and drive, the car will be fine.
- 09-02-14 10:54 PM #7Originally Posted by MoistCabbage
This thread is a lot like all the others, in which no opinions come.
Moving right along.....
----------Originally Posted by MoistCabbage
- 09-02-14 11:08 PM #8Originally Posted by BlueAngel#07Originally Posted by BlueAngel#07Originally Posted by BlueAngel#07NOT ABOUT MOTOR OIL.Originally Posted by BlueAngel#07
Life experiences?? Why??? If you got 10 responses saying "I don't use synthetic and my car is fine", it would mean exactly nothing. If you got 10 responses saying "I use synthetic and my car is fine", it would be equally useless data.
Life experience with an automotive fluid: 4 of my cars have needed their radiators replaced. I used coolant in all of them. Coolant must be bad, don't use it.....
- 09-02-14 11:10 PM #9
I've run synthetics like RedLine in transmission and differentials, a couple stockers but mainly modified or vehicles i really beat on. Didn't have any issues except cost up front. Occasionally I have run across situations where sythetics where noisier in trans/differential. Only ran one car with it in engine, I worked at a shop and got a deal on it. Is that enough of an opinion for ya?
- 09-03-14 07:07 AM #10
- 09-03-14 07:43 AM #11
Re: Synthetic fluidsYour car should already have DEX VI (synthetic) in it.
OEM GM DEXRON-VI is not synthetic contrary to internet myth. It is made from a blend of Group II and Group III base oils plus the additives package. A lubricant with any group II base oil cannot be called synthetic, at best its a synthetic blend, although GM makes no claim that it is in any of its packaging or literature. Every other lube they sell that is a full or synthetic blend they advertise as such, but not Dexron VI..
Heat and oxidation are the primary enemies of lubricants. Lubricants are built with consumables that are depleted over time so anyone who thinks that ATF will last forever is mistaken. Looks are not a determining factor in weather a lubricant is fit for continued use, only oil analysis can confirm its ok for continued use.
- 09-03-14 09:09 AM #12
Re: Synthetic fluids
I use synthetics so I could put the stickers on my toolbox
All seriousness aside. I replaced my trans fluid with DEX VI because all the data says it's better - and I wanted to clean the pan and replace the filter. When I replaced my power steering pump I added an inline filter and Redline synthetic P/S fluid. I can't see that syn brake fluid has any advantage. I flush my system every year or so to remove moisture. In theory, the braided SS lines should give a firmer pedal.
- 09-03-14 10:41 AM #13Originally Posted by MoistCabbage
Which is probably why I've asked this question 2or3 times in different ways not knowing how to put it. Or maybe I like the taste of shoe in my mouth... Not sure.
----------Originally Posted by rodnok01
----------Originally Posted by Hoosier Daddy
----------Originally Posted by EcSTSatic
Thx for the feedback AND the criticism.
I don't think I'll be asking any fluid related question in the future.
- 09-03-14 11:06 AM #14Originally Posted by EcSTSatic
- 09-03-14 11:22 AM #15
Re: Synthetic fluids
DOT 2 190 °C (374 °F) 140 °C (284 °F) ? Castor oil/alcohol DOT 3 205 °C (401 °F) 140 °C (284 °F) 1500 mm2/s Glycol Ether DOT 4 230 °C (446 °F) 155 °C (311 °F) 1800 mm2/s Glycol Ether/Borate Ester DOT 5 260 °C (500 °F) 180 °C (356 °F) 900 mm2/s Silicone DOT 5.1 260 °C (500 °F) 180 °C (356 °F) 900 mm2/s Glycol Ether/Borate Ester
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