I'm with ya on not changing what the OEM recommends. But, 5-20 to 0-20 not too big of a deal when running the 4.7.
Yea, I agree, especially if your going to use the AMSOIL top of the line that is GrpIV oil. Its only a guess, but I think most people would agree, using 0W-20 GrpIV is going to protect way better than using 5w-20 GrpII or even GrpIII.
Its just the folks that say things like;
"I've heard good things about that oil."
"I've used that oil in my past cars."
"Ferrari owners use 'X' oil, so I am too."
That kinda of uninformed decision making just irks me.
Also, I called Jeep and asked them if using Ams was ok in the transmission, they said it was fine since it is a sythetic. Although I didn't get it in writing.
That surprises me,
Although, I won't disagree with anyone that says AMSOIL's Synthetic ATF will work and protect your trans as well if NOT better than ATF+4.
The facts still are, AMSOIL Synthetic ATF is NOT on the list of approved ATF+4. And if its NOT on the list, you've violated the warranty using it.
I've seen several posts in mini-van forums that people who used AMSOIL Synthetic ATF in their 41TE trans got those trans to last 2-3 longer than most with regular fluid changes. Anyother trans fluid, other than ATF+4 in that trans, will result in a worn out trans within 30k miles. Heck, on average, if you don't change the fluid and just leave the factory fill ATF+4 in the mini-vans, that trans will die by 60k miles. ATF+4 was specifically developed to address the 41TE trans problems. And Chrysler did a big consalidation with a lot of their fluids, using ATF+4 for just about everything that it would work with, like manual trans, transfer cases, PS Systems and all the other Auto Trans. Which leads me to believe, the other Chrysler Trans, even if they use ATF+4, its NOT as critical as the 41TE, that ATF+4 was specifically designed for. Its anecadotal, but I think its a reasonable guess that the AMSOIL will probably live up to its claims. Although, its a fact it does NOT meet all the ATF+4 specs and thus can NOT be certified by Chrysler to be ATF+4.
Brake fluid I ended up using a vaccum and changed to DOT 4. Like you said when using brake fluid, I'm one to argue there is no such thing as a synthetic brake fluid. I will however, use what
Well, the checmicals they use in brake fluid would qualify as synthetic years before the Synthetic Craze, and they haven't changed. So, years ago, they could have advertise Brake Fluid as Synthetic, but no one would have cared. Now, some companies try to take advantage of consumer perceptions, and start calling their brake fluid synthetic, which they have every right to do so, its just people should realize, that its no different than any other brake fluid on the shelf, that doesn't advertise that's its synthetic.
Someone correct me if I'm wrong, but can't you consider anti-freeze Synthetic? I don't think there is anything stopping an Anti-Freeze company as advertising their product as Synthetic, but it would still be the same old anti-freeze.
My 2010 OM says to use DOT3, the advantage of DOT3 or DOT4 is that it absorbs moisture much slower than DOT4 and last longer. So, if you don't need DOT4, why use a fluid that degrades faster. Check your OM, because they have changed some of the fluid recommendations over the years.
I wouldn't go back and change it back to DOT3 if that is what is called for, I'd just make sure you change it again in a year or two and use DOT3 next time if that is what is called for. i.e. the DOT4 will work just as well as the DOT3, its just the DOT4 will need to be changed sooner than the DOT3.
Look into Castrol GT/LMA, its the best of all worlds, a different base formulation, but its easier on the seals and parts, its boiling points exceed the highest points for DOT4 and DOT3, and it absorbs moisture much slower than DOT3. It only costs like 10%-20% more than other brake fluids. Only problem I've found with it, the stores in my area don't seem to carry it often, and I have to search for it.
Chrysler reccomends in the Power Steering, so I shouldn't have said....everything. Thanks for the specifics it's much appreciated! All the information you spit out, your'e the creator All Data!
Yea, all the manufacturers keep upgrading their PS fluid specs every couple of years, adding coolers, etc and failed PS racks are pretty common. It all leads me to believe that PS can be pretty darn demanding on the fluid, use the wrong fluid could result in early failure. So, I tend to just stick the manufacturer recommended fluid, and won't go aftermarket until it specifically states it meets or exceeds the manufacturer spec for the fluid.
My trusted brand ever I've been using is the Ams. Not advertising it but I'm just telling the truth. I've benn using it for almost five years.
Yea, I've heard lots of glowing endorsements of AMSOIL, but occassionally they make claims I know just can't be true, that is what sorta turned me off. The ATF+4 claim is an example. I tried their Manaul trans fluid in my Neon R/T, and it shifted a lot better than the OEM and Redline Fluid I had used in the past.
I've been using their fluids for the last couple of years, as appropraite, still use Mobil1 in the 5 qt Jugs from Walmart. You just can't beat that performance/cost ratio when you buy that jug of Mobil1 at Walmart.