Tranny Fluid: What is the opinion of OEM vs. Mobil 1? (no luck STFA)
11-14-2006, 02:34 PM
#11
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The dealer in Denver said the same ... the dealer in the Springs recommended a drain/fill ...
.... that was 20K ago (89K on the car now), no problems and I certainly hope there won't be. He said he didn't want to a flush, but he does a lot of drain/fills and he hasn't seen any issues.
11-14-2006, 02:46 PM
#12
i have M1 75w90 (gl5) in my rear diff, and redline mtl-90 (gl4) in my tranny
m1 will coorode your brass syncros in your trans, so you need a gl4 fluid....like redline.
i used to have royal purple in both, and it sucked ***** in cold weather, so it got the boot after 30k. now the trans and diff are much happier (smoother) in the cold weather.
i used to have royal purple in both, and it sucked ***** in cold weather, so it got the boot after 30k. now the trans and diff are much happier (smoother) in the cold weather.
11-15-2006, 07:28 AM
#20
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M1 does according to their data sheet.
"Mobil 1 Synthetic Gear Lubricant LS 75W-90 combines wax-free synthesized hydrocarbon base oils and a specially designed extreme-pressure, limited-slip, sulfur-phosphorous additive system to provide a significantly higher level of performance in rear axles and differentials versus conventional fluids."