Oil
Instructor
Joined: Apr 2014
Posts: 132
Likes: 15
From: TN
Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
Le Mans Master
Joined: Jun 2019
Posts: 5,409
Likes: 2,137
From: Loveland
DexosR is the most current oil specifically designed for the GM high performance engines.
INFO:
"The current Dexos 0W-40 version for high-performance engines is dexosR, a specific standard for GM's performance vehicles, not a general 0W-40 version."
INFO:
"The current Dexos 0W-40 version for high-performance engines is dexosR, a specific standard for GM's performance vehicles, not a general 0W-40 version."
Last edited by kodpkd; Nov 21, 2025 at 10:25 AM.
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Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
DexosR is the most current oil specifically designed for the GM engine.
INFO:
"The current Dexos 0W-40 version for high-performance engines is dexosR, a specific standard for GM's performance vehicles, not a general 0W-40 version."
INFO:
"The current Dexos 0W-40 version for high-performance engines is dexosR, a specific standard for GM's performance vehicles, not a general 0W-40 version."
Come spring I should be having a lab report to compare to the 0W-40 and hopefully, by then, someone has something besides "it is gooder because I said so.".
Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
IDK how much driving I will get done since I can't drive unless the temps are over 40 but if I get the mileage on the 5W-30 I will change it before shutdown so I will know the lab results and be able to compare it to 0W-40 and see if there is enough improvement to justify the cost. Currently, I know the 0W-40 is good for 6000 miles so I am looking forward to seeing what the 5W-30 is good for. If the difference isn't significant, I would not advise spending more because "Nothing is too good for my baby". I can quantify the cost. What I have not seen is quantification of the benefit besides "it is gooder".
Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
True but do you trust Walmart branded stuff for quality consistency day in and day out? I shop there but I don't buy their store branded stuff whether it is furniture, meat, etc. I have not been able to testify to many of their store branded items for quality.
Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
What makes it good? Just that it screws on? I find it hard to put "good" and "Walmart" in the same sentence when I am talking about consistency and quality. Price, absolutely. I'm not brave enough to buy anything from Wal-Mart that is branded in house. I will be willing to recommend it to someone I hate.
Team Owner
Joined: Sep 2010
Posts: 32,040
Likes: 4,610
Unless you can controvert the quality and specs of Walmart approved oil, or ANY other products they sell, you've got nothing to base your false assumptions upon.
Team Owner
Joined: Sep 2010
Posts: 32,040
Likes: 4,610
What makes it good? Just that it screws on? I find it hard to put "good" and "Walmart" in the same sentence when I am talking about consistency and quality. Price, absolutely. I'm not brave enough to buy anything from Wal-Mart that is branded in house. I will be willing to recommend it to someone I hate.
Team Owner
Joined: Jul 2004
Posts: 28,381
Likes: 3,262
From: Hartford WI
I have bought many of their house brand products. They all have 2 things in common. The item is cheaper than a name brand item and they are always wanting, quality wise. They have almost always been made poorly and they don't last quite as long. So is it your contention that I can save money with the WalMart house brand AND have the same or better longevity? THAT would be cool and perhaps I am shopping at a knockoff WalMart?