Transmission fluid + filter change
I had two instances with tranny slip issues recently. The first time, my wheels were turned all the way to the right and I went to accelerate slowly and nothing happened. I let off the gas and it went forward and hasn't happened again. Also I went to back into a parking space, I put it in reverse and similarly, no movement for a second but then worked fine. I've never had any issues at speed and other than those two instances, the tranny works perfectly.
I examined the dipstick fluid and it is just beginning to turn a tad brownish. Still light in color with lots of red and no real smell to it other than what oil normally smells like. I have 139K on the tranny and it was last flushed around 90K - 100K or so.
I got a filter from NAPA and going to get some ATF+4 at Walmart. I'm wondering if I should use the gasket that comes with the filter, or if I should use Permatex Ultra Black Hi-Temp RTV Silicone Gasket Maker.
What do you guys think? Also any tips for this job? Seems pretty straightforward just wish I had a lift as the tranny pan looks to be dead center of the car.