Quote:
Originally Posted by WRX06TR
I will probably just stick with M1, i was thinking about doing that anyway. I don't really buy into the Mobile 1 causing bearing failure thing. Me thinks it was people just running it for way to long with out changing. Plus its cheap.
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Mobil 1 has in fact changed their formula. If you're going to run it in a car that gets driven hard, run the 15w50. So when it thins out, it's still heavy weight enough.
Personally, I'm not going back to M1... not after splashing a liquefied rod bearing around the inside of my motor. Granted, the oil may not have been the direct cause of the failure, I figure why go with something that's got legitimate question marks around it. The extra cost of RedLine or Royal Purple is still far cheaper than yet another motor rebuild.