Quote:
Originally Posted by Vegas69
I seriously have to wonder about the thin oils all the manufacturers seem spec these days. My understanding is that it's for a miniscule amount of efficiency. My 2017 Tundra with 55k needed new lifters from a sporadic tapping like and old chevy small block. It runs 0w-20. Now the manufacturers are extending the oil change intervals as well. That's a bad idea in my opinion. Most of us commute fairly short distances which as we all know isn't a positive thing for less frequent oil changes. I plan to change the oil in my Tundra at 5k even with synthetic. Not only have the manufacturers specified lighter oil viscosity, but they have also put less tension in the rings to again, aid in efficiency. It's a recipe for far less longevity from my perspective.
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I agree 1000%. That 0w-20 is a joke. It's like water when cold, you can imagine how thin when hot. Did you know GM's min bearing clearance in the book is .001? That's insanely tight. On my Yukon, I found out the hard way they changed the warranty to 60k from 100k like the LS days. A$$holes. I think the engineering on the LT's is pretty amazing, but the execution didn't go as planned. JMO, don't flame me on that one, I am going what I am seeing on the street/forums. I have seen plenty of 300k LS's, have yet to see an LT anything make it even half that on a large scale.