Recent content by Monte32

Originally Posted By: NH73 Originally Posted By: TiredTrucker When one looks past the average 1 pickup user to commercial fleets that run many of them with drivers who could really give a rip about maintenance and rack up some pretty significant miles in situations and conditions outside the...

Originally Posted By: kschachn Originally Posted By: Monte32 This is actually a very good point. The only reason I posed this question is because by my very actions I'm knowingly going against what the manufacturer has recommended. That said, we get right back to the whole "OW-XX weights only...

Originally Posted By: Merkava_4 Originally Posted By: jayg You like getting responses but you don't realize your troll posts just clutter up an otherwise halfway useful thread. If everybody just went by the owner's manual and had no doubts about its oil viscosity recommendation, we'd have...

For me, It' has nothing to do with "going off on my own". I stated that I'd quickly change to 0W-20 if the 5w30 was bad in any way for my engine. This has nothing to do with being a rebel or going against the grain. But it does have everything to do with gathering facts and valued opinions...

Thanks for all the input guys. The manual is kind of confusing as well. It goes on and on about 0W-20 being the oil that the 5.3 engine was tested and created with. But then in another section it states that you need to use a "Dexos 1" approved oil but says nothing about the grade. I had 8...

I wonder if 0W-30 is a good compromise? I know film strength is a concern. 5w30 is tried and true.

And there we go. That's why I'm confused on this. If I absolutely have to use 0W-20 I will gladly do it. But If I'm gonna pour out and replace/waste 8 quarts of full synthetic 5w30 I'd just like to know I have a darn good reason to do so. I.E. - I'm causing my engine serious harm with the 5w30...

Thanks guys. I appreciate the 2 cents from everyone. It gets confusing with this whole Dexos thing. I've always used 5w30. Plus a lot of folks say the only reason we have those 0W-20 and 0W-30 grades is solely for the manufacturers to satisfy CAFE. Others swear by them. So for me it gets...

Thanks Tired Trucker. I just wanted to make sure I wasn't causing damage with the 5w30. The GM folks seem to be adamant about "it has to be 0W-20 cause that was what was used to test and spec the engine". Others have told me that as long as it's Dexos 1 approved I'm ok. I just want to make sure...

Hello all, I'd like some advice. I recently purchased a used 2015 GMC SIERRA DENALI with the 5.3 EcoTec engine. I know GM calls for 0W-20 but I've always run 5w30 out of habit. I just added Castro Edge 5w30 to my truck cause I had 8 quarts handy. The Castrol Edge 5w30 meets Dexos 1. My question...