Helps if you specify MT or AT

 

Sorry it’s MT

 

6sp auto AW-1 fluid...who's doing the job..

 

Mobil 3309

 

3309 is wrong oil for 6 speed automatic.

 

93165290 would be correct for the 6 speed manual. It's about 22.00 a quart.

 

This is the Ford Asin equivalent for the 6 speed AUTO.

Amazon.com

 

AW-1 is 6sp,3309,toyota IV fluid is 5sp auto..

There are threads going back to 2012 saying AW-1 for the 6sp auto(quick search)

 

IIRC Aisin Warner originally specified 3309 as an acceptable fluid to replace the proprietary "lifetime fill" AW-1 fluid. If you look in Toyota and Volvo repair manuals, they do specify 3309. However, I believe AW eventually revised that guidance and recommended sticking with AW-1 AND abandoning the "filled for life" concept.

Confusing matters further is that sometime around 2010 the v2 of the TF-80SC transmission came out, which specifies an entirely different fluid - 3324? I think that's it. The two fluids - 3309 and 3324 - are wholly incompatible.

I don't know why 3309 was the original go-to. AW1 and 3309 have very dissimilar viscosities, AW1 being much thinner. Maybe simply because it was available? I always suspected that between 2005 and 2009 they became aware of what most good mechanics had already determined... 3309 is problematic and that's why they switched to 3324, but I don't know.

IMO, even though AW originally specified 3309 in the TF-80SC you're foolish to use it. Pretty sure Saab drivers figured that out right quick. Stick with the factory AW1. Switching to 3309 increases wear throughout the transmission and causes long-term problems. Probably hurts fuel economy too.

I use Pentosin ATF1 LV in my Aero which is drop-in for AW1. 145k and it's doing great.

 

I am going by what my Saab mechainic uses. There are several being 90% of auto makers used the Asin Warner.
I'm not being argumentative. Just many ways to skin a cat.

 

The 3309 does seem to have a thicker viscosity. I didn't test it. I change the fluid every 15K because of the hard downshifts that start about that point. I have used the Ford AW1 fluid as they use the same transmissions from Asin and I did notice it did seem to make a quicker downshift into first. My last change was the Ford product being I was able to pick it up for 8.00 a quart Vs. 15.00 from GM/Saab. If there is a TSB It would be prudent to follow it.
Might not be a bad idea to post it if anyone is in possession of a copy.
A case of Pentosin is 145.00.