Can you mix Dexron 3 and ATF 4?
Use ATF+4 only. Don’t use anything with Dexron/Mercon fluids. These fluids will cause TCC slippage/chatter problems plus wear out your transmission sooner than you would like for. The slipping could also be due to the bands needing adjustment.
Can you use ATF 4 instead of ATF?
ATF +4 is a synthetic fluid for finely-tuned transmissions, so if you use a non-synthetic ATF instead of ATF +4 in a car or truck that calls for it, you could damage the transmission. You may use ATF +4 in most applications that call for older Dexron and Mercon fluids.
What’s the difference between ATF 4 and ATF 3?
Graphs in the paper show that the friction coefficient of fresh ATF+3 and ATF+4 is essentially identical, but as the fluid ages ATF+4 retains the “as new” coefficient while ATF+3 degrades.
What is ATF +4 used in?
Applications. Mobil ATF +4 is recommended by ExxonMobil for use in these applications: Automatic transmissions specially formulated for Chrysler vehicles, including Dodge, Plymouth, Eagle and certain Jeeps, that require a fluid meeting ATF+4 specification.
Do I have to use Mopar ATF 4?
There’s nothing in an RE or RH transmission that requires the use of ATF +4. All of the transmissions used in our Jeeps were designed, built, and used LONG before ATF +4 was introduced.
Can I use ATF 4?
MaxLife® ATF, ATF +4 and DEXRON® VI are all synthetic transmission fluids. Is it OK to mix synthetic ATF with a conventional and/or synthetic blend ATF? Yes. Synthetic ATF and conventional fluids are 100 percent compatible with each other.
What’s the difference between fresh ATF + 3 and ATF-4?
Graphs in the paper show that the friction coefficient of fresh ATF+3 and ATF+4 is essentially identical, but as the fluid ages ATF+4 retains the “as new” coefficient while ATF+3 degrades.
Can you substitute Universal fluid for ATF fluid?
Don’t listen to any advice about substituting fluid. Use only fluid specifically marked as ATF+3 or ATF+4! One size fits all or universal fluid will compromise the transmission and will probably cause it to slip or slur shifts. You’ve only got 27,000 miles on it.
Can you use ATF + 4 fluid in a Chrysler?
Manufacturers can make ATF+4 fluids, but to use the trademarked ATF+4 name in their compatibility list, they must have their fluids tested and licensed by Chrysler engineers, and must use Lubrizol in their formulations. Licensed fluids are periodically sampled from stores to assure quality.
What kind of oil is used in ATF + 4?
For the full story behind the development of ATF+4, please see SAE paper #982674. It is simply packed with interesting data about the development of ATF+4®. Here are a few tidbits: The initial development was done using Shell’s XHVI base oil. Only much later were other Group III base oils approved.