2002 chevy tahoe what kind of oil

Just run regular 5W30 Synthetic, a good quality filter, and don't worry anymore. If you have some leaking going on and it bothers you, go to a 5W30 regular dyno high millage.

You'll be juuuuuuuust fine. She used to run 10W30 and the change wasn't really noticeable at first, until winter when cold start ups where much quieter and smoother. I noticed some oil traces around the oil plug coming from above. I am going to clean it up and check if the oil is leaking and if oil grade is the cause.

Thanks for the advice! I change it and the filter when the OLM tells me to, which is usually around miles. About k miles on it now. Pretty much no oil usage between changes in summer, and a bit is used sometimes between changes in winter.

I'd use what the manual says. All oil has considerable additives in them. Base oil is clear like water. The color you see when you pour fresh motor oil is additives. Additives control friction, provide extreme pressure modification, control acids, emulsify ethanol, provide detergents for engine cleaning, provide suspension for particulates, control oxidation, and the list goes on. Run a base oil with no additives, even a top end full synthetic base oil, and you will grenade a engine in a short time.

But what is indeed higher is viscosity modifiers. A 0w40 uses quite a bit of them. It is VM that can shear under pressure and break down.

The base oil itself doesn't. I never felt the need for a 0wXX oil, even when I was living in the interior of Alaska for 10 years. When things got that kind of cold, we were sensible enough to use block heaters, oil pan heaters, battery warmers, auto trans pan warmers, and winter grill fronts on our vehicles. Only an ignorant person would have an vehicle sitting overnight at F and not use preventative measures like that.

When one does the right thing, a engine can start at F like it is a warm summer day, and do it on a conventional 5w30, which is what I used all those years in Alaska. Never had one engine problem or oil related issue. The less spread between the cold flow rating the number before the "w" and the oil viscosity the number after the "w , the fewer viscosity modifiers are needed.

I live in central Iowa, and I have no problem using 10w30 in just about everything I own, year round. From my smaller stuff, on thru my personal vehicles, on up thru my commercial trucks. I have various reasons for doing so that I am comfortable with.

And my Silverado and Cadillac sit in a heated garage when at home. For most folks, i would just tell them to stick with the OEM recommended viscosity and call it a day.

Unless one is having a major problem they are trying to address, there is no real need to go to extremes in what oil they are using.

You can post now and register later. If you have an account, sign in now to post with your account. Paste as plain text instead. Only 75 emoji are allowed. Display as a link instead. Clear editor. Upload or insert images from URL. By Elizabeth Henson Started 1 hour ago. By Hwoody Started 17 hours ago. By Jamie86 Started 19 hours ago. To complete a successful oil change, one needs 8 quarts of synthetic 0W oil.

Be sure to check the oil level after changing it to make sure it is correct. Can I use 10w30 instead of 5w30? The 10W30 and 5W30 both have different thicknesses in cold temperatures, and 10W30 is thicker than 5w So, it is best for vehicles running in cold climates to use the 5W30 since it is thinner than the 10w Low numbers indicate lower viscosity, meaning the oils are thinner.

Can I use 5w20 instead of 5w30? In fact, if the car has very high mileage you may want to put in xW But will work and I doubt you will have any engine damage until the next oil change.

What is Dexos oil? Dexos engine oil specification is designed by GM Powertrain engineers and is intended specifically for GM engines. Add to Cart. Quart Capacity 6.

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