What are GM 5.3L owners using for oil?

[JMG]

What are you using in your 5.3L v8?

 

[FastSUV]

buddy of mine using 5w30 castrol dino every 4-5k...seems to like it okay.

 

[daves87rs]

My uncle is using good old Valvoline in his 5.3.

 

[Texas Aggie]

I use GC in mine.

 

[Turk]

Amsoil SSO 0w-30 in the winter.

Amsoil ASL 5w30 or PP any other time.

 

[NHHEMI]

Royal Purple 5w30 in both of the ones I had = 05 and 07.

 

[mcrn]

I just changed my oil yesterday and put in Valvoline SP 5W30. I had enough laying around and it was time for me to get my auto rx rinse phase out of there. Not sure what I will stick to but it seems to like this oil so far.

 

[MidwestVette1]

Right now I am running Amsoil ASL, I think I am going to try the Amsoil SSO when my supply runs out.

 

[GrampsintheSand]

We have a slightly modified 08 Silverado 5.3. Headers/full exhaust/little cam/CAI/catch can and a mid aggressive tune....we did a baseline UOA and of course being a new Chevy motor she was throwing wear metals like crazy...and we still had the stock air filter on it when the UOA was done....we since put a AEM CAI on....
Here is the first UOA at 20K....and as I said this UOA was with the stock air box/filter...we never did find any air leaks so we wrote it off as seals/gaskets/installation "stuff" throwing off silicon...

We started running Chevron Supreme 10-30 and Amsoil oil filters.....and are now at 33K miles....
She runs smooth as silk....gets 20+mpg on the highway and 18 around town....
We will test this run and see where we are...

 

[GrampsintheSand]

She was broke in on PP 10-30 with 5K OCI's and that is what the UOA is.

 

[OilCountry]

I have used 5w30 Valvoline Conventional in my 08 with no complaints since I dumped the factory fill at the 1000KM mark. I was going to switch over to a syn. but Walmart had 5L jugs of Valvoline for $10.88 so I stocked up. Truck seems to like this oil just fine - good thing too since I now have 8 jugs sitting in the basement!

 

[JMG]

Cool guys thanks! I have read that this engine does like Valvoline, but I knew that I would get proof here with UOAs.

The dealer uses Mobil Drive Clean 5000 which is what was put in there before I took ownership.

 

[o2man98]

I have an all Aluminum LH8 5.3 and an LQ4 6.0 and they both get Amsoil SSO 0w-30 and EaO filters.

 

[Zaedock]

Good 'ol green bottle Quaker State 5W30 for 5K changes.

 

[mrsilv04]

Pennzoil Platinum on a '00 5.3 and a '04 5.3

I'm changing it per the OLM or one year, whichever comes first.

 

[RGrant]

Honestly, whatever is on sale. Any dino or syn flavor in 5w30. I'm not loyal to any brand. Right now it's got M1 0W-30. I run the OLM to 0% with syn, or 15-20% on dino. I can't tell a meaningful difference between any of them.

 

[JMG]

I take it that this motor is kind of like the ones from Honda, they do well on any oil.

 

[KevinsDMAX]

I ran Mobile One 5W30, silver cap (two changes). At walmart found Q horsepower for $8 a 5 qt jug. So bought 6. Will get about 40k out of it, then see what's next on sale.

Kevin

 

[steve20]

its favorite is PP 5-30, but right now Synpower is in it cause it was on sale

Steve

 

[bretfraz]

Originally Posted By: Texas Aggie
I use GC in mine.


Me too.