2003 Tahoe 5.3

[jxthomps]

Have a 2003 Tahoe 5.3 liter with 130000 miles. For about the last 30000 it has had V-Max 10w30 with a AC Delco filter. Anything should change to for better or worse. Thanks.

 

[JHZR2]

V-Max = valvoline maxlife?

If so, imo, no.

You could run 5w30 if the manual permits.

 

[bbhero]

I agree with JZR2 here. Valvoline Maxlife 10w30 is fine for our area in SE Va. Tired Trucker just started up the other am at -30°C or so with 10w30. The coldest it's been in the Hampton Roads area has been around -4°F in 1994 and Christmas 1983. With a number of other morning time temps in the low single digits. So, yeah a 10w30 is fine for VA Beach.

 

[Chris142]

My wifes 5.3 drinks 5w30. It uses much less 10w30. Figure that out.

 

[LeakySeals]

Originally Posted By: Chris142
My wifes 5.3 drinks 5w30. It uses much less 10w30. Figure that out.

You try replacing the valve cover with the built in faulty PCV yet?

 

[Chris142]

Originally Posted By: LeakySeals
Originally Posted By: Chris142
My wifes 5.3 drinks 5w30. It uses much less 10w30. Figure that out.

You try replacing the valve cover with the built in faulty PCV yet?
have not heard of this.it uses a qt of 5w30 in 1000 miles...but a qt of 10w30 in 4000. Huge difference

 

[LeakySeals]

Originally Posted By: Chris142
Originally Posted By: LeakySeals
Originally Posted By: Chris142
My wifes 5.3 drinks 5w30. It uses much less 10w30. Figure that out.

You try replacing the valve cover with the built in faulty PCV yet?
have not heard of this.it uses a qt of 5w30 in 1000 miles...but a qt of 10w30 in 4000. Huge difference



You can get the upgraded VC on RA and Amazon.

http://www.autoserviceprofessional.com/article/91874/gm-oil-consumption-and-blue-smoke