Vortec 6000 6.0 liter ticking at idle

[Denali60]

Ok I ll try seafoam but someone is telling me to put 20w50 oil it will gueit it down since it has 150k miles I'm not sure if it's a good idea to run 20w50 what do u think

 

[Passin Thru]

I run 5w40 in my Tahoe. I run 15w40 in my Silverado.

You should be fine with a 5w40 as well.

 

[redemn93]

you can also run rotella diesel oil for a few changes. see if that helps too. different/better properties than standard motor oil. the thicker oil is just a cover up and more for rod knock or piston pin slapping.

 

[Passin Thru]

^^^^ exactly

 

[Denali60]

Thanks a lot for help I will try different oils and see which works best and I ll post in here which oil will work best on this high milage vortec6000

 

[redemn93]

do the seafoam in the crankcase, fuel tank and vacuum line a few times. run the rotella for a few oil change cycles. see what happens. it wont hurt anything and cheap enough to try.

 

[whipper]

x2 seafoam is great stuff!!

 

[livingez_123]

I run a semi synthetic in 10w40. I just turned 135k

 

[01ssreda4]

They love seafoam because the exhaust smokes. Literally a smoke screen. My truck was well cared for, and very clean everywhere when I bought it. In overall better then average condition. It had a very minor oil pan leak, and I decided to replace the gasket. Here's what was inside: And remember, a cleaner like seafoam will dislodge all this crap and send it through your engine. Food for thought, and a before and after picture.

 

[Denali60]

Ur right I'm not going to take a chance with seafoam I ll try heavier oil first 20w50 and see what it does