Own 2009 Sport with A/T--is my daily driver. Almost 35,000 miles. When is right time/mileage to change A/T fluid?

 

Should say in your owner's manual.

 

+1

 

Owner's manual says lots of things, some of which members disagree with. Dealerships say other things and again, some member disagree. Was looking for response by someone with experience.

 

I don't believe the owners manual specifies a change.

Looking at the 2009 Service Highlights, the S2 Auto transmission is essentially the same six speed auto transmissions available in the S1 since 2006.

So I would search the S1 forums and see what maintenance people are doing for those. Also there is a check plug that you could pull out and collect a few drops of transmission fluid and see the color/condition. Just in case people don't know, there is no dipstick.

Another good place for info is the NC Miata forums since they run the same transmission. There is a pretty good write up here:

http://forum.miata.net/vb/showpost.p...4&postcount=61

After reading the info there, I'd probably go for 30,000 mile drain & fill service if I had an automatic. The fluid doesn't seem that expensive and the procedure not too difficult to do yourself. Also make sure you buy the right fluid. JWS3309.

Good luck!