HOW LONG CAN ATF&DIFF OIL LAST IN LOW USE CAR?

Joined
Jan 7, 2014
Messages
7
Location
Australia
I live in Australia and have a 1965 Valiant. The car is lucky to do 1000km a year. How long should mineral Dexron 3 and 80w90 hypoid last? Thanks mad
 
Joined
Feb 12, 2013
Messages
3,117
Location
Virginia
At that rate, probably every 30 years or so on the ATF. The diff even longer. Check to make sure of the level every now and then. I drop the pan on my BBC Suburban every 30K miles and replace some fluid - last time was in the late 90's - it's fine, still red and shifts perfectly. I've never changed the rear diff lube in 22 years.
 
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