Auto transmission synthetic oil ??

JEEPAOLIC · **Posted:** Wed Dec 13, 2006 1:54 pm

HI I'm due to change my tranny oil and was thinking if I could go for synte oil to have better overall performance ? and wich brand do you use....
an since I will drop the pan and change the filter, was will happen to the left oil in the stall ?? it will mix with the new syntec ...

give me your advices..
thanks

Jeepjeepster · **Posted:** Wed Dec 13, 2006 2:17 pm

The oil in the tranny is already Syn. Be sure to use mopar ATF+4 or the equivalent.

Yes, the old oil will mix with the new. :wink:

moose · **Posted:** Wed Dec 13, 2006 2:33 pm

i seem to remember a few posts about a reset that needs to be done after the change.... just something you may want to research

jcphoto20 · **Joined:** Sun Nov 19, 2006 1:36 am **Posts:** 507

i dont think the existing fluid is synthetic, it smells like regular oil to me. i replaced mine with Amsoil and put a pint of synthetic lucas additive, same as transfercase.

Jeger · **Posted:** Wed Dec 13, 2006 3:54 pm

jcphoto20 wrote:

i dont think the existing fluid is synthetic, it smells like regular oil to me. i replaced mine with Amsoil and put a pint of synthetic lucas additive, same as transfercase.

it smells like regular?

jcphoto20 · **Joined:** Sun Nov 19, 2006 1:36 am **Posts:** 507

arent you aware what the different fluids in your vehicle smell like... anti freeze, engine oil, tranny fluid, rear end grease? all have very distinct smells, synthetic smells nothing like petroleum oil.

JEEPAOLIC · **Posted:** Wed Dec 13, 2006 4:02 pm

so a set of atf+4 mopar syntec oil + a quart of lucas tranny additive and filter will work for me..... any advices ???

thanks

Jeger · **Posted:** Wed Dec 13, 2006 4:08 pm

jcphoto20 wrote:

arent you aware what the different fluids in your vehicle smell like... anti freeze, engine oil, tranny fluid, rear end grease? all have very distinct smells, synthetic smells nothing like petroleum oil.

Yes I know they all smell different, but its not exactly hard evidence. I havnt compared the smell of syn vs dino atf fluid though. I guess I just need to go to the store and compare eh? Where can I find non syn and syn ATF +4

jcphoto20 · **Joined:** Sun Nov 19, 2006 1:36 am **Posts:** 507

i went to several places, dealer didnt have it, nor Napa, before i finally found the right filter kit with both filters and gasket... for mine its Fram #FT1223

its got both the regular pan filter and the screw on filter

only took two trips to kragen before they got the right one.

Jeger · **Posted:** Wed Dec 13, 2006 5:05 pm

Every indication I have found states that Mopar ATF +4 IS a synthetic. Made from Class III base stock. :wink:

Jeepjeepster · **Posted:** Wed Dec 13, 2006 5:27 pm

yea, ATF+4 is SYN.. Thats why you MUST use it in our tranny. :wink:

Eddo · **Joined:** Thu Jul 07, 2005 7:01 pm **Posts:** 1214

Yup even the Valvoline AFT+4 bottle say fully synthetic. The Mopar bottle says something similar too.

Joe Jeeper · **Posted:** Wed Dec 13, 2006 10:19 pm

ATF 4! (It's Synthetic) Joe

Skyjump136 · **Joined:** Tue Jul 05, 2005 6:50 pm **Posts:** 1633

You can find ATF+4 at Carquest (at least here locally) and online (ebay is a beautiful thing).

chefdab · **Posted:** Thu Dec 14, 2006 9:00 pm

ATF+4 is also available at your local Wal-mart under the Mopar brand and Advance Auto has the Valvoline brand.

jcphoto20 · **Joined:** Sun Nov 19, 2006 1:36 am **Posts:** 507

amsoil only for the tranny and transfer case here, with lucas oil stabilizer

dieselenthusiast · **Posted:** Sat Feb 03, 2007 4:40 pm

Amsoil, awesome stuff!

JJsTJ · **Posted:** Sat Feb 03, 2007 8:43 pm

What they said but w/out the Lucas, Totally unneccessary to add anything to Amsoil products. :wink:

LiLredLibby · **Posted:** Sat Feb 03, 2007 9:03 pm

You only got 98 cents here. Let me give you the other 2 pennies. ATF 4 is a synthetic fluid plus friction modifiers to protect against shutter. I agree with JJ this time, the Amsoil fluid is a good choice without any other additives.

Jeepjeepster · **Posted:** Sat Feb 03, 2007 10:06 pm

The only thing with switching to Amsoil, you must flush the tranny since it says not to mix amsoil with the old stuff.

I would rather do my own work and flushing the tranny is not something I can do.

Also, I know that Amsoil meets and even exceeds the standards for our tranny, but I wonder if you would get any crap from a dealer for using it if the tranny fails?

Im just alittle worried about the tranny in this thing.

Auto transmission synthetic oil ??

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