differential oil change DIY
Originally Posted by boones
IIRC, the diff calls for an 80/90W which the mobil 1 isn't offered in. 75/90W would probably be just fine in real life, but it's not what Nissan calls for.
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Originally Posted by bythabay
80w90 is old school... 75w90 wasn't available in the earlier days and is better for cold temp performance. If you check out (for example) amsoil's website, they state that their 75w90 gear lubes outperform the 80w90 gear lubes and can be used instead.
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