Did an oil change on the 280z this weekend.
5 quarts of Mobil 10w30 and the car is purring.
This is a bit of an experiment because I’m using slightly thinner oil (i used 10w40 last time). Hopefully all the gaskets and seals will hold up, otherwise, it’ll help show where there needs to be re-done.
What’s missing from this picture?
While i was under car, i noticed a pulley without a belt… then another pulley… and another!
Hmmm i don’t know why i didn’t see that before – though i DID always wonder why the AC never got cold nor did i feel the engine power reduce a touch when turned on.
For those looking: Datsun 280z AC Cold Compressor takes a 11/16″ x 36.5″ belt.
I had to lower the adjustment pulley all the way down before i could get the belt on.
Tighten to a 1/2″ deflection, and we’re ready for summer! Now i wonder how cold the AC actually gets…




