Red Line 57904 75W90 GL-5 Synthetic Gear Oil for Hypoid Limited Slip Differentials - 1 Quart (4 Pack)

Smooth gears, happy mechanic.

Tip notch gear oil for rear differentials.

Top of the line at a reasonable price. Made my manual transmission shift much smoother.

Fast shipping good product thanks Amazon .

Good product

Top of the line gear oil that will keep things running smoothly. Less noise from diffs than other brands I have used. Transfer case operates very quickly with no clunking going into 4WD.

I've been using this oil in my '08 Tacoma for about 10 years now with no issues. Clean going in, clean coming out.

Love everything about this stuff except changing it. This does what it is supposed to. The problem with that is trying to get spills cleaned up and getting it off your hands. I mean this stuff stays on whatever it touches. Awesome for use in application, bad for the person who has to change it. I mean it is ideal for my Tacoma and 4runner. Amazing product. I have changed this out of the differential 3 times in nine years, never have I seen any, ANY metal pieces, slivers, filings/shavings on the plug magnets. Virtually no wear happening to the gears inside the differential. Try that with most other brands and see if you don’t see metal on the magnets.

I use this gear oil in my race car. Good product and fast delivery.

After much of research online I settle with these stuff due to high ratings and recommendations. It matches what Suzuki GV takes for front, center and rear diff. Stuff are super thiccc and smelly, thicker then what came out of my diff... but I am not sure what was put there in first place by original owner. At the end I have not noticed any issues or changes in fuel economy after 1000 km with these stuff. Diff locks are switching fast... maybe faster then it was... but that might be placebo effect.