I need a thicker 5W-30

[wtd]

I have a 98 K3500 with the 7.4L big block with 102,000 miles. The oil spec is for 5w30 which I have been running for the winter. I'm currently using Valvoline white bottle. I have already used around a quart in 2,000 miles and that is more than I like. I've not noticed any blue smoke and the tailpipe is clean as it can be.

Can anyone recommend a thicker conventional 5w30. Thanks.

Wayne

 

[artificialist]

Oils marked "High Mileage" are typically thicker than their competition.

 

[beast3300]

Pennzoil High mileage or Valvoline Maxlife are slightly thicker 5w30s.

 

[Art_Vandelay]

Are you willing to go synthetic? If so, German Castrol 0w30 will give you a, thick as it gets, 30 weight. Plus you can double your oil change interval since it meets all the Euro Long Life specs.

 

[Quattro Pete]

Originally Posted By: wtd
I have already used around a quart in 2,000 miles and that is more than I like.

I highly doubt that another Xw-30 (even if slightly thicker) will make your oil consumption go away. Find the source of the leak or consumption.

 

[Oregoonian]

I second the Valvoline suggestion....Valvoline MaxLife Blend or Full Syn. 5w30. Possibly you have some leaks and I know MaxLife will help in that area.
______________________________________________
2003 Ford Focus SE Sedan (2.3L) / 82K
Valvoline MaxLife Syn 5w30 / 7000 +/- OCI
Purolator PureOne 10241

 

[mikered30]

Is the Maxlife Blend generally considered the best HM oil? It gets talked about a lot on here.

 

[crazyoildude]

high mileage oils do work

 

[dime]

its a big block, they will burn oil. its a fact of life based upon the actual size of the cylinders and build quality. my best friend has a 2004 8.1 chevy with 65,000 mi and it burns around a quart every oil change.

 

[CrazyMike]

How cold is your area, I'd just run a 10w40, our commercial supplier has a mineral 10w40 with a -39c/-38f pour point, that will do a great job at reducing burn, IMO look for a 10w40

 

[calvinnnnnnnnn]

maxlife syn 100c @ 11.7
maxlife blend 100c @ 11.5
higher the thicker

 

[wtd]

Thanks guys. The truck has no leaks. I replaced the valve cover gaskets last year which had been the source of a few leaks but they are sealed now.

Its been staying pretty close to 0* this winter for the lows with the highs staying in the 30*'s most of the time.

I have been thinking of going to a higher viscosity oil but didn't know if this engine would like a 10W-40 or not. I know the 396BB in my 70 Monte Carlo does but it has looser tolerances than this engine does. I will probably try the Maxlife blend first and see what happens. thanks again.

Wayne

 

[Slick17601]

454's are known to burn some oil.

 

[shrooms]

Maxlife Blend is doing great so far.

 

[Oregoonian]

Originally Posted By: mikered30
Is the Maxlife Blend generally considered the best HM oil? It gets talked about a lot on here.


I would say that MaxLife is considered the best HM oil...
________________________________________________
A government, which robs Peter to pay Paul, can always depend on the support of Paul. --George Bernard Shaw--

 

[mikered30]

^^Thanks

 

[JT1]

Originally Posted By: Oregoonian

Is the Maxlife Blend generally considered the best HM oil? It gets talked about a lot on here.


I would say that MaxLife is considered the best HM oil...
________________________________________________
As would I, I have used it with good results.

 

[JonfromCB]

Rotella T-Syn 5-40 performs like a "thick" 30 weight, is
very robust and reasonably priced. If price is no
object Redline 5w30 will behave like the heavyiest
40 weights.