Redline 75W 90 Rear End Fluid

[RedMerc04]

I had noticed some seepage from my rear end a few weeks ago. Being off from school today I dumped the fluid and threw on a new gasket with form-a-gasket on both sides. Sealed it up all good and Filled it with the redline. I dont know if its mind over matter but the car feels a little quicker, seems like it is lighter. I was able to spin the hell out of the tires and get seriously sideways from a dead punch. It runs like it did in 20 Degree weather in todays 65. So is it me or is this some really good stuff? :burnout:

[RF Overlord]

RedMerc, can I assume you had the factory fluid in there before today? If so, then no, it's not your imagination...RedLine 75W-90 IS really good stuff...it's not only a little thinner when cold, it's also a full synthetic. The MPG and power gains may be small, but they're gains nonetheless...

[RedMerc04]

RedMerc, can I assume you had the factory fluid in there before today? If so, then no, it's not your imagination...RedLine 75W-90 IS really good stuff...it's not only a little thinner when cold, it's also a full synthetic. The MPG and power gains may be small, but they're gains nonetheless...
Yeah I assume it was close to factory spec. When I had my gears done the bill included 4oz of friction modifier so therefore, I am sure it wasnt a synthetic.

[RF Overlord]

the bill included 4oz of friction modifier so therefore, I am sure it wasnt a synthetic.Not necessarily...the Motorcraft 75W-140 and the Mobil 1 75W-90, both synthetics, require the additional friction modifier. I think only the RedLine has it built-in, but the AMSOIL may also.

But you're probably right...unless you specified otherwise, the installer would most likely have used what the manual called for, which is 80W-90 conventional. Enjoy your new-found power!

[RedMerc04]

Not necessarily...the Motorcraft 75W-140 and the Mobil 1 75W-90, both synthetics, require the additional friction modifier. I think only the RedLine has it built-in, but the AMSOIL may also.

But you're probably right...unless you specified otherwise, the installer would most likely have used what the manual called for, which is 80W-90 conventional. Enjoy your new-found power!
Interesting... I sort of assumed that most synthetics had it built in.... Ya learn something new everyday i guess... Thanks!

[DarthMarauder]

I noticed the same thing when I replaced my axle bearings cause I switch from 80w-90 to 75w-90 full synthetic Mobil 1 feel like the car it actually moving and not straining like before but that could have been from the bearings eating into the axles also. LOL

[RedMerc04]

I noticed the same thing when I replaced my axle bearings cause I switch from 80w-90 to 75w-90 full synthetic Mobil 1 feel like the car it actually moving and not straining like before but that could have been from the bearings eating into the axles also. LOL
Yeah well Im sure that had something to do with it :lol: