Quick Q on s15 HLSD fluid

[94_240sx]

I'm working on swap right now and need a suggestion on diff fluid. Some say 75W-90 and others say 80W-90. Mobil 1 synthetic gear oil only comes in 75W-90. Valvoline makes synthetic blend 80W-90. I live in TX. What should I get? Thanks in advance.

[AZhitman]

Either one is fine. You can use the synthetic for a little extra measure of protection, but the weights are near identical.

[94_240sx]

Thanks for quick response big guy. On my way to Autozone...

[garagelu]

the nissan service manuals calls for 80w-90 weight. It really doesnt make too much of a difference but i would just use what nissan calls for. I used lucas oil 80-90 in mine.

[94_240sx]

the nissan service manuals calls for 80w-90 weight. It really doesnt make too much of a difference but i would just use what nissan calls for. I used lucas oil 80-90 in mine.

Got 75W-90 Mobil 1 and I haven't noticed any problems. Thanks for thr input though.

[RPS13.5]

How about the dealer recomend Penzoil for VLSD??? would work with S15 HLSD???