Colorado Turbo 2.7L Oil Question Quakerstate vs Pennzoil

Joined
Jun 11, 2021
Messages
29
Hello,

As the title says, I'm kinda torn between 2 oils for my New 24TB Colorado and cant make up my mind. Im a huge fan of QS and Pennzoil. On my other vehicles (WRX and wifes Pathfinder and our real old Ford ranger with 245k I use Quakerstate high mileage synblend) I use PUP for the Subbie and Nissan with excellent results. Since neither of those vehicles require DEXOS spec, Ive narrowed it down to 2 oils that do carry the GM dexos Gen 3 spec. I've read other post on here about just using whatever oil is on sale that meets spec, etc etc etc. Thats not why Im making this post. I want to know if it WERE YOU, and the choices were QS Ultimate protection or Pennzoil Platinum what would you use and WHY.

I live in MO so not to bad of cold weather, but comparing spec sheets. I see Pennzoil has a -48 pour point and the QSUP has a -42 pour point. I like the -48 on the PP but it has a much lower flashpoint of 207c vs the 237c for the QSUP. I dont know anyone with these trucks personally so I have to take to the interwebz. Im not sure how hard these 2.7 turbos are on the oil but I would assume, id want an oil with a good add pack with moly and noack levels. Your opinions please? Attatched are the latest PDS from Quakerstate and Pennzoil.

Thank you for your time.

Screenshot 2024-10-04 173820.webp


Screenshot 2024-10-04 173844.webp
 
PUP if were my truck.

PP if you force me to choose.

I love QS too, (used it for a long while) but I choose the oil with a better base stock…..
 
you can't go wrong with either. toss a coin and call it.

The Pennzoil has a good selling point of being a natural gas base but something tells me the QS may hold up better with the turbo.
 
you can't go wrong with either. toss a coin and call it.

The Pennzoil has a good selling point of being a natural gas base but something tells me the QS may hold up better with the turbo.
Why do you think the turbo would hold up better on the QS 20k oil? OP gives us no indication he's interested in extended mileage OCIs, since he likes Pennzoil Platinum, which is not a SOPUS high mileage oil. The PUP would be his choice otherwise.
 
the QS has a stout additive pack
That's because the Platinum has a better GTL base oil, thus less need for high number additives. Plus the Platinum may be using a higher quality group of additives, just in less numbers.
For instance: There's a few different Molys out there. The highest Moly numbers at value pricing generally show up as less quality.

Pennzoil is SOPUS Flagship oil lineup. Quaker State falls below it. Numerous times members have sent SOPUS email, phone calls, faxes, postal mails and texts about this. SOPUS always responds like I stated a couple sentences above this one.
 
Last edited:
Why do you think the turbo would hold up better on the QS 20k oil? OP gives us no indication he's interested in extended mileage OCIs, since he likes Pennzoil Platinum, which is not a SOPUS high mileage oil. The PUP would be his choice otherwise.
Your right, I should have clarified my apologies. I NEVER follow the OCI that a manufacturer states in the manual. What I mean by that is, I will never take an oil to 7500miles or 10k. Seen to many videos from engineers and mechanics with how much gunk ends up in the engine from that. Not to mention turbos are so hard on oils. Even in my heavily modified wrx I change it at 3500 per the BS lab report and the wifes pathfinder gets 5k oil changes and the ford ranger gets it changed every 6 months because we only drive it a few times a month and it sits. For this engine I am going to do 4k oil changes.

I have no problem spending money on oil to do an early change because as we all know, oil is cheaper than engines LOL. I will be keeping this truck for a long time. The reason I selected the QSUP is I thought I read on here that QSUP was GTL just like the PP and PUP. Id love to use PUP for this but for warranty I was going to use a Dexos rated oil. I will also be pulling a travel trailer soon and will really put a load on this engine. Might even go 3500 but probably 4k. Heck Id even use QSFS but love the GTL. Since its GTL I thought it might be a tad bit better than the regular QSFS.

I also wanted to do frequent oil changes to minimize carbon deposits on the valves and will also not do short trips with this vehicle. The pathfinder and ford both have port injection. Heck, if GM would have made this engine port AND Direct injected it would have been a slam dunk. They engineered it like a diesel and from what I read made a darn good engine just don't understand why they didn't at least add port injection. Maybe they assume by 60-100k people will trade it in, who knows.
 
Last edited:
That's because the Platinum has a better GTL base oil, thus less need for high number additives. Plus the Platinum may be using a higher quality group of additives, just in less numbers.
For instance: There's a few different Molys out there. The highest Moly numbers at value pricing generally show up as less quality.
how is SOPUS being profitable with their pricing between the two?
 
One of those flashpoint tests is with the D92 method, the other D93. They're not directly comparable. The PP would be around 227 with the other test method.

The higher flashpoint and pour point of the QS indicate that it's probably mostly Group III base stock. The PP will almost certainly have lower Noack (~8.2%).

Pennzoil makes strong and specific claims about how well their oil performs in the piston deposit and valvetrain wear tests. QS only provides vague performance claims.

I'd go with the Pennzoil.
 
QSUP is typically a few pennies cheaper in my area so probably that one. However you could do PUP during rebate season to take advantage of the PZ rebate. Then use QSUP the rest of the time. Why not both?
For warranty purposes, PUP is not Dexos certfied any longer unfortunately :( I do not want to give GM ANY reason to deny a warranty claim if I happen to have a engine related failure.
 
One of those flashpoint tests is with the D92 method, the other D93. They're not directly comparable. The PP would be around 227 with the other test method.

The higher flashpoint and pour point of the QS indicate that it's probably mostly Group III base stock. The PP will almost certainly have lower Noack (~8.2%).

Pennzoil makes strong and specific claims about how well their oil performs in the piston deposit and valvetrain wear tests. QS only provides vague performance claims.

I'd go with the Pennzoil.
Wow that Noack level is really nice. I like that. Thanks for the info.
 
how is SOPUS being profitable with their pricing between the two?
I was just looking at that myself. The PP is a few pennies more than the QSUP at my local walmart which is why I couldnt make up my mind and wanted some advice from here. When I pick and choose an oil, that is what that vehicle will see its ENTIRE service life. I dont change even if the price goes up. The only way I would is if the manufacturer discontinues it and Im forced to use something else.
 
Back
Top Bottom