Can you use 75W90 in the rear end?
#6
Stock capacities are 1.4 qts for the diff and 2.6 qts for the tranny. 75W90 is the recommended weight for the diff. My diff fluid was really ugly when I drained it -- all silver from the metal in it. It seems like the car would benefit from diff fluid changes every now and then (30K miles?).
-Max
-Max
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#8
The Spirit of FLUFF!
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Hmmmm....dude your scaring me! Maybe I too should check my diff., and my tranny. I'm kinda fearing that I have a broken 5th gear synchro though... man, will that suck. So they recommend 75W90? I think I'll go with royal purple!
#9
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Mazda Owners Manual:
Lubricant Quality:
Diff Oil:
API Service GL-4 or GL-5
Above 0degF: SAE90
Below 0degF: SAE80W
Man Trans oil:
API Service GL-4 or GL-5(SAE 75W-90)
Above 50degF API Service GL-4 or GL5(SAE 80W-90)
If you trust a shop that's made other recommendations and has evidence that it actually gives you some benefit, great! Else, deviate from Mazda's recommendations at your own risk.
Mark
Lubricant Quality:
Diff Oil:
API Service GL-4 or GL-5
Above 0degF: SAE90
Below 0degF: SAE80W
Man Trans oil:
API Service GL-4 or GL-5(SAE 75W-90)
Above 50degF API Service GL-4 or GL5(SAE 80W-90)
If you trust a shop that's made other recommendations and has evidence that it actually gives you some benefit, great! Else, deviate from Mazda's recommendations at your own risk.
Mark
#10
Trust me you can tell the difference if you do change the diff. and tranny fluids. For the differential fluid change, definetly get a gas mask. I almost puked. I use Mobil 1 when I use synthetics.
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