mazda 5 speed fluid type?
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Senior User
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mazda 5 speed fluid type?
i have a 1988 f- 150 with the mazda 5 speed. the haynes manual i have says that in 88 the trannys used gear oil and i read on here somewher they use automatic transmission fluid. which is correct for that year. thanks
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Senior User
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i was wrong the manual says the 4 speed before 93 use gear oil. all five speeds use atf. i already drained it and filled it with gear oil. i have been driving now for over a week with gear oil in it. that might explain the rough shifting a little. as gear oil is thicker than atf.
Do you guys think this has caused any real problems with the tranny.
going to change it tommorrow, and also i read somewhere to add 4 ounces of friction modifier to the fluid. is this true? thanks guys
Do you guys think this has caused any real problems with the tranny.
going to change it tommorrow, and also i read somewhere to add 4 ounces of friction modifier to the fluid. is this true? thanks guys
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Joined: Jan 2006
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Probably didn't hurt much of anything since you didn't drive it that long. I would just drain the transmission and then put the 4 quarts of ATF in it and drive it 20 miles or so and then drain it out. Then top it off with a clean fill of ATF. That shoudld get 96% of the gear oil out. If you want to do an extra 3% drain and fill it one more time.
