Kirkland motor oil
I see that Costco has their own brand of synthetic motor oil. Like other Kirkland branded items, is it any good? Having a sale on 2 pack of 5qt containers for $25 delivered.
Forum Discussion
Although the ambulance chasers are using the marketing of "obsolete" oil next to current standards as deceptive, in NM they did test the oils and discover the emissions control systems on many modern vehicles using the obsolete oil did cause problems with the emissions controls and may have damaged certain sensors. The long term effects are not know simply because there is no way to go back and test what had happen as nobody can say for sure what they sued last year or the year before. So, it's all based on what can be tested now.
