The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- The 99-06 GMT800 Chevy and GMC Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=58)

- - Mixing Oils (https://67-72chevytrucks.com/vboard/showthread.php?t=861541)

'68OrangeSunshine

11-10-2025 12:15 AM

Mixing Oils

1 Attachment(s)

My 2003 Tahoe w/4.8 V8 seems to be leaking oil. I had the oil changed in July and now I'm getting Oil Level Low on the odometer screen. A suspicious scum of an oil slick on my driveway, and I'm thousands of miles from Exxon Valdez...

I am out of my preferred lubricant, Valvoline 5W-30 High Mileage synthetic. [Or NAPA equivalent.]
I have one qt bottle of Mobil 1 5W-20, I got from a neighbor.

Is it OK to use this one quart of Mobil 1? No time to get to O'Reilly's in the morning before work.

Getter-Done

11-10-2025 12:20 AM

Re: Mixing Oils

I have done it.;)

I will not sponsor or stand behind it.:lol:

'68OrangeSunshine

11-10-2025 12:23 AM

Re: Mixing Oils

Quote:

Originally Posted by Getter-Done (Post 9410216)

I have done it.;)

I will not sponsor or stand behind it.:lol:

Ought to hold till the next oil change, then?

Getter-Done

11-10-2025 12:44 AM

Re: Mixing Oils

Quote:

Originally Posted by '68OrangeSunshine (Post 9410217)

Ought to hold till the next oil change, then?

For Sure.;)

'68OrangeSunshine

11-10-2025 12:50 AM

Re: Mixing Oils

Quote:

Originally Posted by Getter-Done (Post 9410221)

For Sure.;)

Cool. Thx
:chevy:

Greg58

11-10-2025 01:56 PM

Re: Mixing Oils

I have done it in the past. Full of mixed oil is better than driving low in my opinion!

Greg

All times are GMT -4. The time now is 04:23 PM.