Royal Purple/Amsoil Synthetic ATF
 

Do they meet Chrysler ATF+4 specs, or am I going to need to need a separate friction modifier??

Amsoil ATF does meet ATF+4

I personally will not run anything royal purple makes. Too many people have lost motors with it before and it's not worth the risk. I run amsoil in everything and it works great.

my warehouse runs royal purple in there trucks and have good luck.

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i am going to royal purple when my truck gets a few more miles. warehouse says i should run a good filter like afe oil filter

here is a quote of why I will not run royal purple.

"Well...I used to build offshore race engines for some of the big league open water guys and before any engine left the shop we did break-in and tuning in shop on the dyno. Break-ins were always at varied rpm and on conventional oil....after an hour of runtime we switched to a synthetic oil....and even did some r&d for Roush and a couple other big engine guys. We experimented with Amsoil, Mobil 1, Castrol Syntec, and Royal Purple looking for a couple horsepower here and there....and I can tell you we couldn't get the Royal Purple out of the engines quick enough. We even experienced engine failure on two different unrelated engines...a N/A 560 ci and a 720 ci blown motor. Both had spun rod bearings, excessive wear on the mains, and wrist pin failure....and the pin failure should have never happened with pressurised pin oilers. We eventually settled on two oils....Mobil 1 and Amsoil.....and when you have a pair of engines running at redline for an hour in open water you only use the best.

Consequently....Amsoil was the first synthetic."

hmmm i run royal purple xrp race oil in my mustang and achohol race bike the car runs 10s and the bike spins at 22k for 30mins on a race both motors never failed and its been 4 years of racing with no problems and no tear downs. i also run it in all my trucks and cars, plus my father is a chemical r&d guy and he did a test on oils and amsiol and royal both have the same break down propertys and chemical formula both having little basis in actual oil both being more of a custom blend of additives and formulas so, that being said both oils are great to use and way better than any non syn.

maybe they changed something since then, but I am not taking a chance.

I think both are excellent Products.

I do aswell, I run Royal Purple in my mud truck and it has a 383 that sees alot of high rpm use, and I use Amsoil in the Kubota loader I run

i use valvaline true blue full synthetic in my engine and valvaline atf-4 full synthetic in my t- case

i guess im boring with my rotella:ouch:

What the hell is that? Theres no such oil...

valvoline does make it i is specifically make for the 5.9 cummins. about 65.00$ with a filter at NAPA. just bought some today

I ran Royal Purple MaxATF in my truck for about 6 months. It did seem to shift a tad better at first but with in a month it was getting worse.

I do BELIEVE my TC was already starting to bake before I ever put the Royal Purple in my transmission so I'm NOT saying that RP baked my trans!

But when the truck was in the shop I did some research on if I should put the RP back in or go with something else after they were done.

I'm friends with a Dodge Service rep who's worked for them for almost ever. He reminded me that up until a few years ago no one made a ATF+4 for Dodge except Dodge. It was a proprietary formula. That got me thinking OK who does Dodge allow to make their special secret formula then?

First thing I learned was that the Mopar ATF +4 is a full synthetic right from the factory. Our automatic transmissions never run a dino oil in them.

Next thing I learned is some brands are licensed to re-brand: just use the same formula as Chrysler and some are licensed to blend: modify the formula with in specifications.

The most interesting part I learned...is neither Royal Purple nor Amsoil are on their list.

http://www.centerforqa.com/licensedatf4brands.html

Advance Auto Parts ATF+4®
Carquest ATF+4®
Castrol ATF+4®
Chevron ATF+4®
Citgo Transgard ATF+4®
Coastal ATF+4®
Conklin ATF-Xtra Plus ATF+4®
Formula Shell ATF+4®
Great Wall ATF+4®
Havoline ATF+4®
MAG 1 ATF+4®
Mobil ATF+4®
Mobil Super ATF+4®
Mopar ATF+4®
MotoMaster ATF+4®
NAPA ATF+4®
Northland ATF+4®
O’Reilly ATF+4®
Parts Master ATF+4®
Parts Plus ATF+4®
Pennzoil ATF+4®
Petro-Canada ATF+4®
Quaker State ATF+4®
Ravenol ATF+4®
Sinopec ATF+4®
Super Tech ATF+4®
Texamatic DC ATF+4®
Ultramax ATF+4®
Valvoline ATF+4®

I'm sticking with Mopar ATF4+ from now on.

Ya, as far as not being on their list, some companies, AMSOIL included, don't spend the dollars to get their names put on the list. There are several examples of this...even the API certifications. These products still qualify but don't have the offical "blessing" from the OEM. Since they qualify, they can't be denied in warranty issues as long as your using a proper fluid rated for that particular use.
Then on the Mopar ATF+4 being fully synthetic. I have heard several versions of this and none are consistant. Wish I could find out what the real story was??? I had always heard the mopar fluid was a semi-synthetic. I had a friend take his truck to a dealer. He wanted them to put our ATF in it, but he didn't advise it. He told him that the full synthetic products were "too slippery" and were causing problems?? He recommended he stay with the Mopar fluid. This made me assume the Mopar was not full synthetic, or this guy didn't have a clue?? Go figure.

Doesn't getting a oil api certified mean that you can't change one part of the formula without getting it re-certified? With the r&d done by AMSOIL and their tweaking the formulas would cost them a lot would it not?

Now the dealer he took the truck to must not know a whole lot about what he is talking about. Seems to me he has no clue that mopar atf 4 is synthetic and is still uneducated about synthetics. Now if the whole case about the trans fluid being too slippery when we put the synthetic universal transmission fluid in the turbo 400 of my dad motorhome last year before they took it to Alaska that thing should have had issues as it was a stock trans on a 87 allegro. But all the fluid did was lower operating temps and make the thing purr and help pick up some mileage

woops i ment to say ATF+4 not atf-4

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the true blue stuff is $25.00 a gallon at cummins dealers

You are correct....on both points:U:

who would i send an oil sample to to have it tested after a certain amount of time

I think youre talking about the Valvoline Extreme Blue.....there is no True Blue...

Blackston Labs is a very common one use. Oil Analyzers is another, this is an amsoil company. Important that once you start with one to continue with them, at least for the same vehicle. There can be small variations in labs.

Blackstone Laboratories
Oil Analyzers, Inc. - Oil Analysis, Oil Testing Services

If you lean towards OA, I can get it for you if you wish.

thats the stuff i call it true blue for some damn reason i havent figured out yet:argh:

I just had a sample sent to BlackStone and was very Pleased with the FAST Response I got with them :U: :U: :U: :U: :U:

how long does it take them to give you the results

I think Blackstone is a little although I've not used them. OA is 7-14 days, it varies.

Amsoil in everything I own, since 1994 !! Twin Mercury 250xs's with 1400 hours !:U::U:

i use conklin convoy in my trucks:U:

love royal purple in my truck been runnin it hard for 45000 miles still runs great

so gear oil for the tranny? 6 speed manual

Valvaline true blue full synthetic is no doubt the way to go