Quote:
Originally Posted by lsmkr01
To clarify, 7500 was considered okay but after more info has come up over the years its becoming clear the safer route is every 5k. I'm also switching to a thinner Mobil 1 0W-40 as soon as I hit 5k. I just got a change at the dealer with 10W-60 a little over 1k miles ago. For the super tight clearances on our engines the 0W-40 will be more effective at protecting the engine components before/after it reaches normal operating temp and also prolong the life of the rob bearings. Tighter clearance engines benefit from a thinner oil that can penetrate the voids and lubricate them from friction.
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What info are you referring to? If you look at the oil analysis thread it seems like the TWS holds up just fine at 7,500 miles and beyond
What makes you think 5k is necessary?