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Engine Oil Preference


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Posted

Now I have a truck I can get excited about I want to play more attention to maintence and keep it running good. I have a '03 2500HD with 8.1L V8 and Allison tranny.

 

Question is what type and brand of engine oil do you guys recommend? How hard is it to change the engine oil and filter on this truck and engine?

Posted

I use M1 5W40 Truck & Suv Oil and Amsoil Synthetic Filters. If it's a 4WD, then the oil filter is a PIA to get off. I use a baggy to slip up over the filter and remove it so that the oil doesn't drip onto the front driveshaft universal.

 

DEWFPO

Posted

Oil and filter choice is like socks and underwear and toothpaste ... no right or wrongs just personal preference.

 

Me?

Castrol GTX and Wally World filters.

I change oil/filter about every 5000 miles.

 

For more in depth info visit....

 

www.bobistheoilguy.com/

Posted

I use Mobil1 5W-30 synthetic in my truck,And conventional Pennzoil 5W-30 in my cars.

Posted

One of the few things that people here will agree on is to stay away from Fram oil filters.

 

Everyone has there own preference if you want to learn more than you ever wanted to know about oil check out www.bobistheoilguy.com.

 

If you pick an oil that meets the standards set by GM you'll be fine. I don't think you can go wrong.

 

I personally use penzoil platinum with AC Delco filters.

 

Engine oils are like a$$holes all people use them, they are all get dirty, but everyone prefers their own.

Posted
OH MY GOODNESS!

 

Not another OIL thread.....

 

SAVE YOURSELF NOW!

 

RUN AWAY!

 

... is like socks and underwear and toothpaste ...

 

Lets start a THOOTHPASTE thread. :bs:

Posted
Thanks everybody.

 

I'll stay clear of Fram oil filters. I have heard their (Fram) air filters are questionable too right?

 

I've never heard a single bad comment about Fram Air Filters. Just their bottom rung, standard line of oil filters.

 

DEWFPO

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    • This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
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    • Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  
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