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Plenty of debate here on oils and no one right answer or even much consensus besides many thumbs down on Mobil 1, with "it's not what it used to be" being the common refrain. Look em up and read to your heart's content. Everyone's got their pet brands for varying reasons. There seem to be a number of good choices available. Some use 0W40, others 5 or 10, and some W50. I don't recall seeing anyone recommending a different oil based on mileage. If you're changing often enough, it seems this shouldn't be an issue.
My car's a little over 70k and I've been using Mobil 1 0W40 since 43k. Seems fine. When Jake did my IMS retrofit recently, we spoke at length about oils and he never said to start using a different weight at a certain mileage, just be diligent about changing it every 5k. He was referring to general engine health, not the IMS bearing which, as the last poster said, is sealed.
Based on the fact that the M1 0W40 can be a PITA to get around here (gotta order it by the case a week in advance) and LN Engineering, developer of the IMS retrofit bearing, sells 5 liter bottles of Motul 8100 5W50 for not much more, I'm going to buy a case of 4 - 5l bottles and give that a spin.
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Hybrid Mode
