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2022 Acadia 3.6L; 56,600 kms on vehicle, 13,000 kms on oil, OLM 0% left. Out 10W-40 Duron & Fram XG In 15W-40 T5 & XG. Oil down 1/2 litre after 13,000 kms

Something promoted by country fair grifters, like Lake Jr and other participant trophies with a microphone

API FA-4 10W-30 and 5W-30s are another option a half step above 20 grade. Maximum HTHS is 3.1

For summer use above freezing with FT camshafts, Delo 400 SAE 30 is your friend. Forget the gimmicks like Valvoline Restore and Protect.

Here are two contrasting engine oils. One is 5W-40 and the other one is 5W-30. Delo 400 xsp 5W-40 40C 96 100C 15.4 HTHS 4.2 API CK-4/SN+ Havoline Pro-DS 5W30 40C 62 100C 10.8 HTHS 3.2 API SP Dexos 1 gen 3 Perhaps someone can explain what the numbers mean. Who “us”? Is there more than one...

Try reading more and posting less.

Not much, because 5W cold start performance is not required in a hot climate. In fact, multi grade engine oils are not required or necessary in the summer months. I would and have used mono grades in the past in similar applications, or just gone with 15W-40 because it’s cheap and available...

0W-40 FS would be my pick. No seasonal changes, no thinking. Besides, I have 6 jugs if it for the same reason for use in a F350 6.2L gasoline engine that lives near the Yukon border.

Wars, especially in countries far away are good for business.

0W-40 winter, 15W-40 summer. Worked perfect in a 2010 Yaris and two 2013 Matrix.

I tried a pcmo 10w40 in my 2011 6.6L LML, followed by a UOA. The result? Nothing out of the ordinary, except the oil sheared out of grade as expected. The same engine now deleted for the last 80,000 miles with a Bully Dog tuner and Banks this and that, has a 50/50 mix of 10W-30 and 20W-50...

2011 GMC 2500 LML 248,000 kms,4173 hours. Out 10w40 Duron & Fram ultra In 15w40 T5 & Fram ultra

About 400 litres including ATF, THF, GL5 and engine oil.

Abby someone.

I was expecting a new Buick.

It looks like I struck a nerve.

So much for the narrative that HDEOs are not suitable for gasoline engines. I have UOAs that dispel that myth. Usually internet keyboard warriors and content creators with a cellphone on a stick have alternative motives, like trying to sell you something that’s three times the price. “Rev up...

Ya got me. Does that include Dexos R, or are you referring to resource conserving grades like 0W-20? $16 USD a quart is $320 a pail for a product that has no performance guarantees, is out of my price range.

For me it’s approvals and licensing from the various governing bodies, plus manufacturers’ approvals. Followed by price and availability,

Harsher than what, is the question. Her summer set are 275/35r20s on 20x9.5” Black Rhino wheels. Suspension has been upgraded with a Rough Country lift kit, stiffer springs, shocks, struts and all. Finally the car/suv handles like it should have from the factory.