Went to Lane automotive today and spent the long dollar on earl for the trans. Bought Redline synthetic C+ for 9.19 a quart. It's the only synthetic specifically developed as a replacement for Mopar ATF+3,4 or 7176. Royal Purple makes fine fluids but not one equal to that spec and Amsoil makes one they claim to be a good replacement for dexron mercon, atf or Chrysler spec. Hmmmm. Well It might work, but dexron, atf and 7176 (+3) or (+4) are very different in the eyes of a Chrysler automatic trans, so I though better to go with a fuild designed as a specific replacement, not a coverall. Yes I realize I said automatic, but that is what out trans is spec'd out for. Will probably put it in tomorrow and will report on the magical shift qualities and 50 extra hp later.
Peace out.

 

Yes, please let me know if it makes shifting any easier. I missed that blasted 3rd gear again in a race... only once mind you on the seconf time I got it and dusted that foo'.

Peace Out.

 

i find it interesting that they claim that it is a speced replacement for mopar aft+4 since mopar hasn't released the specs to the aftermarket companies.....

i've been looking for a new fluid to use, but i can't decide on which one i want to go with. let us know how you like the redline after you put a few hundred miles on her.

 

Okay, here's what redline oil has to say; http://www.redlineoil.com/products_g...59&subcatID=19
Now here's what I have; First of all, weather was cold (38 deg f), wet and rainy. So no serious seat of the pants acceleration tests could be performed. I was however, able to attain my standard target speed of 176 mph with the #4 plug wire pulled. So I will say that the horsepower is still apparently there.
Now in all seriousness, I logged about 10 miles of low speed neighborhood and 2 lane rural after the fluid change, and I will say there was an immediately noticeable change in shifting feel. Different for sure, but for the better? I'm not as certain. How most people would percieve the feel change is, I would guess, better than 90 percent would comment positively. What it is like is, just imagine a lot thinner oil in the trans. You would have noticeabley easier cold shifting (which I did) you can "feel" he inner working of the trans much more clearly (which I did). I would say this is all good, BUT, when you use a heavier lube, you get more shock protection and the accompanying peanut buttery feel. So I have this little question sitting way back in the corner of my mind that is trying not to bother me, but I know it's there. It is the question that if this new lube is thin enough to allow such improved shift feel, is it coming at the expense of shock protection? Well this might just be another example of the miracles of the modern chemical age. Maybe it is protecting just as well while providing improved shift quality. After all, that is the whole idea of paying big bucks for a sophisticated formula. Right? Time will tell and so far, I say so good. I'm guessing the improved slickeriness is giving measureable hp gains too, but I can not prove it. Not yet. All this aside, I know the owners manual says you should not ever have to change the fluid in the trans for the life of the car, but come on guys, do you trans a favor and change it. I have 12,500 miles on mine. That could be considered barely broken in for a trans, but was obviously a good time to change the fluid as I noticed a significant amount of shiny metallic dust suspended in my fluid giving the otherwise red fluid a distinctly silver/gray tinge. It needed a fluid change, and I'm glad I did it. Also of note; The owners manual does not give a quantity that the trans will hold. Well, you'll need to buy 3 qts. The trans took about 2.75 qts.

 

I believe there is a TSB that one of the gals on here posted about changing the tranny oil at an interval that was shorter than the owners manual specified.....

Dusty

 

that would be me. the tech at my dealer told me that the tranny fluid needs to be changed every 10-12k on these cars. i have 25k on mine and have changed it three times. i noticed a great improvement when the fluid is new, but after a few months there are issues again. i would definetly suggest changing the fluid at least once a year, it's easy to do (30 minutes in your driveway) and the fluid costs all of like $20.

 

The addendum to the manual actually states every 18,000 with Mopar ATF+4 and Friction Modifier. However in the manual itself (for 03s and 04s) it states that it should be changed almost DOUBLE that....

 

so our cars use automatic transmission fluid not manual transmission fluid? im trying to buy some redline and i need to know if you hvae the exact part number for it that would help alot too thanks

 

you need the redline equivalent to mopar atf+4

 

It's called "C+" Check out the link on the fourth post.