[Stephen12ZL1]

Originally Posted by JSH

I want to be sure I understand this:

Does 15 track days equal 50,000 miles in terms of wear/tear on, and needing to service, an A10 trans?

Seems hard to believe.

it is the heat generated which causes fluid degradation. The full throttle upshifts and downshifts on track cause clutch material to shed and in turn more debris in the filter/pan magnets. A typical cruise to cars and coffee or street driving is basically nothing comparatively. The first fluid service showed the worst fluid color change and debris compared to successive changes. It is 15 hours of track use not 15 track days according to GM's High Performance supplement.

[ZX-10R]

Originally Posted by Mark R

Since I usually drive my car pretty hard, because it is not a daily driver, I will probably keep changing it every 10,000 miles or so. I still change the diff every year. That fluid gets nasty real fast.

Yep, every 15k is typical for aggressive driven sports car (non track use), 30-50k for a passenger car

[JSH]

Then I need to change mine

[ZX-10R]

You know what they say about auto trans flushes - either keep up with it (and filter changes) or don't bother. If the fluid is brown it probably causes more damage to change it but that's usually >80-100+k miles

Honda will not flush an auto trans anymore because they don't want the liability if it fails

[Mark R]

Originally Posted by ZX-10R

Yep, every 15k is typical for aggressive driven sports car (non track use), 30-50k for a passenger car

I agree. I'm not going to spend $80,000 on a high performance sports car that is a weekend toy and GT car, then try to save money by cheaping out on maintenance.

[Vigilante375]

Originally Posted by JSH

I want to be sure I understand this:

Does 15 track days equal 50,000 miles in terms of wear/tear on, and needing to service, an A10 trans?

Seems hard to believe.

As I mentioned, 15 track hours. Not days.

For normal driving, it's every 45,000 miles for both transmissions and for the rear end.

Originally Posted by Mark R

It's actually 15 hours of track time, then you change the fluid. Where in the manual does it say 50,000 miles? I tried to find the transmission service interval for street use, and I could not find it.

Since I usually drive my car pretty hard, because it is not a daily driver, I will probably keep changing it every 10,000 miles or so. I still change the diff every year. That fluid gets nasty real fast.

The maintenance schedule for the transmission (both A10 and M6) and the rear end is 45,000 miles. For normal driving that is.