Quote:
Originally Posted by zxspeedspec
I will say you should check your dipstick. 10 quarts is generally half a quart too much since the last quart doesn't fully drain. It's probably not enough to cause head gasket issues, but depends on how aggressive you get with your driving.
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Agree on using the dipstick. Not every car is lifted the same way, so there's likely a bit of variation. My garage has a very slight rake for drainage and I lift my car equality on both front sides with a pair of jack stands, so there's a good slope for the oil to drain toward the plug outlet. For me 10 complete quart bottles is exactly what I need, whether I pre-fill the filter or not. No more and no less. But yeah checking the stick at 9-1/2 quarts is always a good idea.
Quote:
Originally Posted by hamp
Thanks Gunkk
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Ya mon.
Here's the latest report if you want to see for yourself. You can see when I changed to 0w40 ESP Formula in the Boron numbers. Before that I used 5w30 Mobil1, Valvoline and Supertech without issue. You can see Blackstone's comments about it in the previous tests results I posted in the same thread: no concerns either way.
But when Chevy changed their recommended oil fill, so did I. I live where it stays warm year round so I'm not concerned about the slightly higher viscosity. And the data show that it hasn't done the car harm. None of the oils did TBH. I don't care about the extra $50 once per year and would rather go with Chevy's engineering recommendation over what I can pull out of my ass. Besides, I got a new oil fill cap out of it:
https://www.amazon.com/ACDelco-FC265.../dp/B0792NR4C6
