Going to drain and fill my Grand Cherokee's tranny over the weekend. There doesn't seem to be a converter drain so quite a bit will remain. It still has the factory fluid in the trans with 70000 on it. I am going to top off with Max Life Dex/Merc and am wondering about compatability issues such as friction modifiers etc. Any thoughts? Thanks guys
Vavoline Max Life Dex/Merc Compatable with ATF4
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I would stick with ATF+4 myself, the SuperTech variety at Wal-Mart is pretty cheap, and other places often have deals on it as well. It is also a full synthetic, don't think the regular Maxlife is. Oh &
Chrysler doesn't recommend using anything that isn't ATF4. Valvoline on the otherhand says it's ok. At work when I am tired of arguing with the manager I just put maxlife in a chrysler.
They always shift hard with maxlife. If it was me, I would buy the least expensive ATF+4 product. They are all the same formula.
They always shift hard with maxlife. If it was me, I would buy the least expensive ATF+4 product. They are all the same formula.
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If that was my Jeep, I'd put nothing in it but full-spec, says-so-on-the-bottle ATF+4. The specs are so strict that as mentioned above, WM Supertech +4 is probably as good as any. I bought 10 qts of it when I got the Dakota 2 months ago, & am about to do my 2nd siphon & refill(~3 qts) on it.
If that was my Jeep, I'd put nothing in it but full-spec, says-so-on-the-bottle ATF+4. The specs are so strict that as mentioned above, WM Supertech +4 is probably as good as any. I bought 10 qts of it when I got the Dakota 2 months ago, & am about to do my 2nd siphon & refill(~3 qts) on it.
Originally Posted By: beast3300
Chrysler doesn't recommend using anything that isn't ATF4. Valvoline on the otherhand says it's ok. At work when I am tired of arguing with the manager I just put maxlife in a chrysler.
Everytime I order a special fluid from Napa they send maxlife. I do not see how a fluid can cover all the bases so I refuse it. I'm not going to eat an expensive trans in a customers car because I put the wrong fluid in it.
Chrysler doesn't recommend using anything that isn't ATF4. Valvoline on the otherhand says it's ok. At work when I am tired of arguing with the manager I just put maxlife in a chrysler.
Everytime I order a special fluid from Napa they send maxlife. I do not see how a fluid can cover all the bases so I refuse it. I'm not going to eat an expensive trans in a customers car because I put the wrong fluid in it.
I would not concerned unless you have a FWD Chrysler/Dodge minivan transaxle, which is the one that is really picky on fluid. Yours is a regular RWD and the Maxlife will be fine. The two ATF fluids are compatible, even if the newest Maxlife is a bit lighter viscosity.
BTW, not all ATF+4 fluids are a "full synthetic". Some are syn-blends but still meet the same spec.
BTW, not all ATF+4 fluids are a "full synthetic". Some are syn-blends but still meet the same spec.
just but castrol ATF+4 in my 08 jeep. $5.99 synthetic. It performs a slightly different than the oem fluid that came out, which i believe is valvoline. melikes, would recommend.
I've read that you can use a dex in your trans, but i wouldn't do it at it's age. stick with the +4 formulations.
M
I've read that you can use a dex in your trans, but i wouldn't do it at it's age. stick with the +4 formulations.
M
What engine does that Jeep have? If it's the 4.0, it has the 42RE tranny, which would do OK with a good quality DEX, although there's nothing wrong with ATF+4. If it has the 4.7, it's got the 545RFE, which is a newer design. Use nothing but ATF+4 in those.
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