Engine oil

[gotyourgoat]

I don't think most of us here still have converters on these trucks. But the tractor supply oil I have as well as Walmart oil both carry the API SN certification. I haven't checked any of the 10w30 or 5w40 diesel oils for their certification. I am useing it cause it has higher zinc than the regular 10w40 gasser oils.

Sort of a bold statement. My truck has two.

Any oil suggestions for a truck with converters that drinks gas and oil?

 

[SquareRoot]

Convertors? Lol. I just pissed myself.

 

[DoubleDingo]

Guess everyone is entitled to having a bad week every now and then, and that's where I'm at. I may have misinterpreted some of the comments, so I do apologize. But it wasn't 15w40 that I was concerned about, rotella came out with a gas truck engine oil......why would that need to be different from a car? And as far as the floor mat gap, need more info, pile or cut pile carpet?

Trucks haul stuff.

Cars don't.

Need more?

 

[80BrownK10]

Sort of a bold statement. My truck has two.

Any oil suggestions for a truck with converters that drinks gas and oil?

I didn't say no one has them, but if I made a poll I bet we would find out many more people don't have them than do. Just my thoughts. I have come across quite a few folks that drive squares. Never seen one that had cats on it. Original trucks sure but most of them don't have them.

 

[DoubleDingo]

I didn't say no one has them, but if I made a poll I bet we would find out many more people don't have them than do. Just my thoughts. I have come across quite a few folks that drive squares. Never seen one that had cats on it. Original trucks sure but most of them don't have them.

Depends on the emissions requirements.

 

[80BrownK10]

Depends on the emissions requirements.

Yea I guess if you live in an inspection state or the republic of California? We're not here and I don't think any of the adjacent states to me are either? I know only like Cobb and Fulton counties are in Georgia.

 

[gotyourgoat]

Yea I guess if you live in an inspection state or the republic of California? We're not here and I don't think any of the adjacent states to me are either? I know only like Cobb and Fulton counties are in Georgia.

Started a poll to find an answer.
https://www.gmsquarebody.com/threads/catalytic-converters-does-your-square-have-them.28239/

 

[80BrownK10]

Started a poll to find an answer.
https://www.gmsquarebody.com/threads/catalytic-converters-does-your-square-have-them.28239/

Thanks! I have never started a poll before, may ha e taken me a bit to figure it out. Looks good and this one will be interesting.

 

[Rusty Nail]

What did it go bad after 2000 miles? Did you do oil analysis?

Rotella is good oil, but I run Valvoline mostly.
I ran 15-40 Rotella for a couple of reasons, no analysis lol.
I wanted to observe changes in oil pressure and attempt to observe variance in valvetrain sound and engine speed.
Knowing about some diffferences in additives/detergents in specifically diesel oil, I wanted that stuff in my crankcase and use it up for a bit to guarantee introduction to my oil system of the diesel additives.
Both engines have their own issues and both are new but / old to me, BUT I built neither sooooo i'm messin around with em. Playin.
Establishing baselines and intervals.
Wasting money likely.

After 2,000 miles because that was my imposed interval, no benefit to continue..

The IROC freakin loved that stuff but it's too heavy. I think it pissed off the Bonnie Blazer really, she couldnt care less, she just wants a proper transmission.

 

[Octane]

Trucks haul stuff.

Cars don't.

Need more?

I knew a 400 pound man once that drove a Vega.Now that is a load! And the oil was "self changing oil" if you know what I mean.lol

 

[SirRobyn0]

Here's a question, just seen a Rotella commercial for truck oil?? And the commercial was pushing the fact that you don't run car oil in your truck. I think it's a load of crap but maybe I'm missing something? But since the vette runs a 6.2 and lord behold so does the denali....I think it's total bogus.

But it wasn't 15w40 that I was concerned about, rotella came out with a gas truck engine oil......why would that need to be different from a car?

I'm going to take a crack at answering this. I've been a mechanic for many years, and tried a lot of oil and oil additive products though the years, so what I say will be based on that. I had not heard of the truck oil so I looked at it on the Rottella website. Looks like it is available in synthetic 5w30, 5w20 and 0w20. These engines were not built for synthetic oil, that doesn't mean you can't run it, but in might use more oil than desirable. These engines called for 10w30, so you could run the 5w30. as far as the difference between a 6.2 in a car and a truck, they probably have some differences like camshaft, but main difference is that the car doesn't haul weight. The truck oil probably has a slightly different additive package in it like, high mileage has a different additive package. In the real world I've not seen that paying extra for a specialty oil makes any difference. If you really want to run synthetic I'd go with regular 10w30 synthetic. If your running conventional oil and want a little extra protection add a quart of hyperlube at each oil change.

 

[shiftpro]

Whew!

 

[Octane]

Lets see...I'll run diesel oil in my diesel truck.Diesel oil in my diesel car.And car oil in my gas car. Unless of course that diesel oil also has the api sn on the bottle.And some do so does that make my gas car a gas/diesel oiled hybrid?

 

[norman baker]

Here's a question, just seen a Rotella commercial for truck oil?? And the commercial was pushing the fact that you don't run car oil in your truck. I think it's a load of crap but maybe I'm missing something? But since the vette runs a 6.2 and lord behold so does the denali....I think it's total bogus.

i use it in my worn out engines, add a little extra life , but you cant go back , with a drop in oil pressure and performance.

 

[Ricko1966]

I use the rotella t4 15w40 because it still contains zddp which a flat tappet cam needs to keep from going flat they phased it out of most motor oils a few years back and I went into panic mode.So I researched it and found the rotella still has zddp.irrelevant if you have a roller cam but flat tappet, whatever oil you run make sure it has zddp or add zddp.