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· Registered
722 Posts
Discussion Starter · #1 ·

Somebody has asked me what oil to use in his NP203 from a Blazer. He was confused as several suggestions had been made. ATF, Motor oil (10W40), Gear oil like used in axles...

Can anybody help?


'83 CJ-7 258/TR/TF999/D300 in Land Rover Country


· Official Historian
8,275 Posts
The NP203 in my 78 Dodge calls for 10W30.

79/CJ-7/AMC360/TH400/Q-TRAC/d30/d44/33's/RS9000s/Herculiner/Pro-jection 2D/MSD/4.10s/lockrights

I always thought it was 30 weight non-detergent oil. I would say any motoroil would be fine, but gear lube is a definate no-no. I even know of people running ATF during the cold winter months.


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