This video compares the performance of Costco’s new motor oil with that of Walmart’s Supertech oil. If you don’t want to watch the entire video, I will summarize the findings for you: The Kirkland oil performed essentially the same as the Walmart oil and Amazon’s Basic oil–and that means very goo…

You may be correct on that. But GM says Dexos for all cars from 2011 onward. This from a Google search yesterday. Dexos engine oil specification is designed by GM Powertrain engineers and is intended specifically for GM engines. … All vehicles produced in and after 2011 are stocked with Dexos oil …

[image] FRANKM: My book says to use only single grade. Briggs and Stratton changed their oil recommendations several years ago for all of their small engines. So now 5-30 syn can be used year round for everything.

Good thing it says recommended. That means you don’t get a warranty claim denied for not used Dexos certified oil as long as it meets the requirements. Having Dexos on the label is shorthand so that you don’t have to look through all the pertinent requirements.

As a side note, I’ve been a fan of Project Farm’s videos for over a year now, and they are all amazingly well put together. While not perfect (even he says that), the tests are pretty thorough and he strives for consistency. There’s a test video for seemingly everything on the channel.

Thank you for your reply. I do appreciate it. , That is exactly what I meant.

OIL QUALITY IS EXTREMELY IMPORTANT. I changed the oil in my Lincoln Town Car 3 times in 270K miles and used any oil I could find sittin around. Still ran good when I got rid of it because the paint was toast.

[image] Jeffrey_Johnson: OIL QUALITY IS EXTREMELY IMPORTANT. I changed the oil in my Lincoln Town Car 3 times in 270K miles and used any oil I could find sittin around. Still ran good when I got rid of it because the paint was toast. CAR WAX QUALITY IS EXTREMELY IMPORTANT. CSA :palm_tree: …

68 Triumph TR250-paint still good, 60 Austin Healey 3000 still good, 63 XKE still good, 67 Camaro so so, 69 T bird so so, 37 Chev roadster pickup eh, 60 Willys wagon not so good…

You changed the oil every 50,000 miles or so?

[image] jtsanders: You changed the oil every 50,000 miles or so? Yeah, whether it needed it–or not. :wink:

Testing Costco's Kirkland Full Synthetic Motor Oil

Maintenance/Repairs

common-sense-answer April 18, 2020, 9:18am 65

CAR WAX QUALITY IS EXTREMELY IMPORTANT.

CSA

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Testing Costco's Kirkland Full Synthetic Motor Oil

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