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I broke down a pair of 00-05 Deville Rear Calipers to powder coat. It has the internal e-brake function. I am curious what kind of lube I should use. There is a needle bearing as seen here. The factory appeared to just white lithium grease from what was left but could be way off? Would using the...

0w-40 all year...? I would be looking to majorly increase OCI. No way I would get that kind of mileage before winter is up.

So, what are the thoughts about running the Rotella T6? 5w-40 all year long and extending my OCI.

It is true. They run anywhere from ~200*+ at operating temperature. Low speed fans doesn't turn on until 229" and high speed at 234* from factory!

And that does lead to next question lol. I see a lot of people running 10w-40 and 15w-40 in these engines. Most say they do it to keep the oil pressure in tip top shape on a high mileage N*. So, what about 5w-40 for winter or even as the above poster states 0w-40...?

Yes, I keep my two Auroras well maintained. I am aware of cooling system issues and pulled head bolts and the likes. They are a warm running engine. However, there there are some things you can do get the fans to turn on at a more desirable temp. Settings are too high IMO from factory. One...

Thanks for the answers guys! Many differing opinions but look as if most lean toward the maxlife 5w-30 not ony for winter but for all year. Dailydriver, just curious why you would suggest 0W-30?

So, you fellas are saying 5w30 all year around...?

Looking for opinions on which brand/type of oil to use. The common question haha... I drive a 1996 Oldsmobile Aurora with 107,000. It has a 4.0L aluminum V8. Same engine as the Cadillac 4.6L Northstar with smaller displacement. The owners manual calls for 10w30 with Starburst label/API. I...

Right, but I am asking if the two fluids are compatible if I choose to bast/siphon method vs flushing?

I have read around the forum but never came up with a concrete answer on if it is okay to mix clear power steering fluid with DEX VI. The service manual states. Quote: GM Power Steering Fluid (GM Part No. 1052884 - 1 pt.,1050017 - 1 qt., or equivalent). Instead of flushing all the old out is...