Amsoil ATD has worked very well for me for most of the car's life. I'm at 80,000 now and if shifts perfectly. However, ATD is not the recommended Amsoil product, I use it because it's a more robust fluid than the standard ATF and it gets very hot around here. Any synthetic should make a nice difference with cold shifting.

Redline D4 is another fluid I would look into. Both Redline and Amsoil use no VIIs and are close to the same 100C viscosity as the Z1 with much better cold flow.

I've never looked at the the Mobil 1 product but if it's anything like their motor oils you don't know if you're getting a fully synthetic base stock regardless of what the bottle says but you can count on paying the fully synthetic price.

 

Can you shed some light on Mobil 1 syn oil? I am using it right now and have been since my last Acura. How is it not fully synthetic? What do you recommend as far as engine oil (synthetic)?

 

Ok so I did my transmission drain and fill at my dealer today. I specifically told them if they do a regular drain/fill or 3x3 and they said they only do regular. Wtf... And it is a huge dealer, one of the biggest in this region and they don't even do 3x3?! umm yeaa well anyways I'm a noob and went ahead and did the regular.

PS does that seem right? No 3x3?

 

So I went to my dealer and asked about the 3x3 drain and fill and they don't even do it. I asked are you sure and they assured me that no, they only do the drain and fill once. Is this for real? They are a big dealership and they don't even do this?

 

If it's working good, nice shifts and all, stick with it. Mobil makes good products, I just hate the marketing department. In the case of the motor oils you're paying the "fully synthetic" price for a grpIII oil which legally can be called synthetic. Castrol and some other companies do this too. Pennzoil Platinum is one of those but it's priced very nice so I have no problem with that.

Don't get me wrong, *some* of thier products are full synthetic. I've heard the high mileage oils are mostly synthetic and their 0w-40 is an awesome synthetic.

Amsoil is very clear in their labeling. Everthing but the XL line is a true synthetic. What Amsoil markets as a dino oil, most other companties market as "full synthetic". Thats my only point. Mobil products will serve you well, just keep in mind the price and what you're getting.

If you want the best protection, Redline is it. Group V ester, lots of Zinc, Phosphorus, and tons of moly for wear protection and friction reduction. It's also super shear stable, you can take the car to a few track days and not need to change the oil after each one. It has a very high HTHS for it's viscosity. Their 5w-20 has a higher HTHS (which usually goes up as viscosity goes up) than most 30wts. Their 5w-30 has a higher HTHS than most 40 grades. What this means is the get the flow of a 20 or 30wt depending on what you choose but the protection of the next higher grade.

 

VVV from my post above:

 

^ Oh. Thanks.

 

Thanks "car hater". WIll try Amsoil the nest time. Have you heard of Royal Purple? Any good?

 

My 05 AT has 62k on it and the display came on reading A13. I read that as Oil change and tranny fluid change. The dealer told me that wouldn't come up til around 90 or 100k?
I will be switching the engine oil to full synthetic this weekend. Any clue why the tranny fluid change code? I will probably pick that up and do that anyway.
Thanks!