Experience the Difference Costco Engine Oil for Unrivaled Engine Care

If you have questions about your membership or products you've purchased at Costco, please visit the membership counter at your local Costco or Contact Customer ... That's a great price. Any clue on who actually produces Kirkland motor oil? Click to expand... My 2 minute google research points to Warren ... Anybody who does their own oil changes use the Costco heavy diesel oil ... FYI - motor oils are heavily regulated by the feds so look at the ... The 1 at the end is for cars with a dpf - not diesels per se. if your car has no dpf then 229.5 is the way forward and vice versa 229.51 with ... This brand is great for a wide range of vehicles from older cars to gas trucks. However, due to its limited oil range, it's not the best fit for Diesels or ... ... car at. Pep Boys and similar. Also, several US members responded as if they've had Costco change their oil too. Naturally, I'd like to know ... Still too pricey. Walmart is the best place to go for motor oil if you can stand being there. Right now, and for only 4 days, Costco.com is selling 2 pack, 5 quart jugs of 0W-20 full synthetic Kirkland oil for $24.99 including free ... I have always bought Mobil 1 or Castrol for our rav4 and try to change the oil before it goes too far before 6k miles. Also always use an oem oil filter. I have used Kirkland synthetic for 4 oil changes and have not seen a noticeable decline in oil level between changes.