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Hello, I came across this forum post that claims you can just add a bit of F-type ATF to a GM transmission to firm up shifts. It is claimed by some that no extra wear and tear will be added to the transmission. What do you guys think of this? I figure the firmer shifts would lengthen the life...

Hello, Is Mobil Super 2000 the same as Mobil 1 High Mileage? I would like to try out Mobil 1 HM because of the praise it seems to get but the oil is unavailable in Canada.

Hello, I have a car that I have parked while I sell a second one. I start the car once a week and get the engine to operating temperature to help reduce deterioration. The car is parked on a slope so I was wondering if it's harder for oil to reach the valves that are on the higher side of the...

This test does not go far enough. Statistically, no valid conclusion can be made about the filtering capabilities of each brand with just this data. The author would have to test each brand and model multiple times (with a new filter each time), take an average, and compare that average to the...

Hello, My car sat without being driven for about a year, but I would start it up once every few weeks to keep the engine seals from drying out. Recently, I got the car on the road, but the transmission seems to be slipping a little in all gears. The fluid was about a litre low due to some...