![Is Costco's Kirkland Motor Oil Safe for Your Car? Let's find out! SuperTech Synthetic vs Kirkland - YouTube Is Costco's Kirkland Motor Oil Safe for Your Car? Let's find out! SuperTech Synthetic vs Kirkland - YouTube](https://i.ytimg.com/vi/l9il_piyuT8/sddefault.jpg)
Is Costco's Kirkland Motor Oil Safe for Your Car? Let's find out! SuperTech Synthetic vs Kirkland - YouTube
![Amazon.com: KIRKLAND SIGNATURE Aceite de motor sintético completo SAE 5W-30, 1 cuarto de galón, 6 unidades Amazon.com: KIRKLAND SIGNATURE Aceite de motor sintético completo SAE 5W-30, 1 cuarto de galón, 6 unidades](https://m.media-amazon.com/images/I/41Amq5QZpwL.jpg)
Amazon.com: KIRKLAND SIGNATURE Aceite de motor sintético completo SAE 5W-30, 1 cuarto de galón, 6 unidades
![Sound Auction Service - Auction: 12/11/21 Singer, Bergman & Others Online Auction ITEM: 6qt Kirkland Synthetic SAE 5W-30 Motor Oil Sound Auction Service - Auction: 12/11/21 Singer, Bergman & Others Online Auction ITEM: 6qt Kirkland Synthetic SAE 5W-30 Motor Oil](https://d2250799znyjyn.cloudfront.net/user_images2/172525_3348017.jpg)
Sound Auction Service - Auction: 12/11/21 Singer, Bergman & Others Online Auction ITEM: 6qt Kirkland Synthetic SAE 5W-30 Motor Oil
![Anybody running the Kirkland Signature Full Synthetic 5W-30 Engine Oil? Thinking about using this in my 2011 STI. Hard to beat the price and it's got all the API and dexOS certifications. Anybody running the Kirkland Signature Full Synthetic 5W-30 Engine Oil? Thinking about using this in my 2011 STI. Hard to beat the price and it's got all the API and dexOS certifications.](https://i.redd.it/2yypd88wnug81.jpg)