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noomg
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Joined: 08-02-2018
Location: Long Beach, California USA
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While browsing the Routine Maintenance section in the workshop manual I came across a note in RM 28. It said the transmission is filled for life and other than occasionally checking and topping up never needs to be changed. Am I the only one who finds this a bit strange?

redracer
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Joined: 09-10-2012
Location: BROOKHAVEN, Georgia USA
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uh-oh! you've committed the "cardinal" sin;---you read the instructions--shame.
Maybe they realized the car wouldn't go over 50k, so that was considered "for life" back then!
For the 4spd. tm. we add 4 oz. MoS2, available from Dow Corning as "M GEAR GUARD"9costs a little over $1/oz, but well worth it)
For 5spd. tm., don't add anything as it's not needed and will make the tm. "too slippery" for fast shifting.

mtechwim
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Joined: 12-07-2019
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Car manufacturers still write in manuals that transmission oil ( Manuel and automatic),and differential oil is filled for life.
So replace that oil on a regular basis will gif you a longer life and less replacement of those units at the dealer, for al lot of money.

So it’s always good to replace gear oil, surtenly when it’s 40 years old.



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