Not new but first post.

[Cooltaurus21]

I own a 2001 Chevy Tahoe with over 350k miles on the same engine! I have replaced the Transmission twice! I wanted to ask the question in the chat but don't know how to. Maybe you can answer this 1 question. The mechanic says to use a heavier weighted oil because it burns it up quickly and I am get engine pressure is low to where the vehicle stops accelerating. Will 10w40 hurt the engine?

 

[OR VietVet]

Welcome to one of your first posts on the forum.

At this point, with 350k miles on the engine and the looseness at the bearing clearances, I would say, "Go for it".

 

[GMCnewbee]

Many, many years ago I had an old chevy v8 that was running very hot on a trip. I put in 50w racing oil and that engine loved it. You have nothing to loose.

 

[Cooltaurus21]

Welcome to one of your first posts on the forum.

At this point, with 350k miles on the engine and the looseness at the bearing clearances, I would say, "Go for it".

Thank you!

 

[Miami-Dade]

Welcome from NYC!

I still see a lot of 2000-2006 Tahoe's and Yukon's out there on I-95 running just fine.

 

[Fless]

Welcome from Colorado!

 

[RAMurphy]

Yep, I agree a heavier weight oil with that many of miles - I too say go for it. Hope you will keep following and keep posting.

 

[MassHoe04]

Welcome from MA!
Is it smoking or burning through oil quickly at all?

 

[Joseph Garcia]

Welcome to your first post on this Forum.

Pics of the truck, please.

You are already receiving sage advice from the knowledgeable folks on this Forum.

 

[tom3]

Couple old school ways to check on the condition of your engine: Does it knock or rattle on cold startup? Are you seeing or smelling any oil smoke? Does it consume any unusual amount of oil? Reduced oil pressure? Pull out the PCV valve and look for smoking when hot. The reduced acceleration might be due to the cat. converter getting plugged up. I'd probably go with an oil change with Rotella 15w40 oil myself, and change it at 3000 miles or so.