![weed smoking vs cigarettes Smoking vs Vaporizing [Infographic] : r/trees](https://lookaside.instagram.com/seo/google_widget/crawler/?media_id=3897638378325975443)
![weed smoking vs cigarettes Smoking vs Vaporizing [Infographic] : r/trees](http://www.dutyfreeonarrival.com/articles/wp-content/uploads/2016/09/Cigs-GVE2-16-300x231.jpg)
![weed smoking vs cigarettes Smoking vs Vaporizing [Infographic] : r/trees](https://s.yimg.com/ny/api/res/1.2/bpb2CJdeZxdkneSkEF4LNw--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTczNTtjZj13ZWJw/https://media.zenfs.com/en/esquire_269/3bde0184a917e055febee19475a60c3e)
★★★★★ 5
Excellent choice for long oil change intervals.
Size: 1 Quart, Pack of 6
I'm a former dealership mechanic and for years I used whatever we had in the bulk tank which was usually Valvoline conventional. My last job was at a German car dealership. Castrol was the oil recommended by the German manufacturers and that's when I started using Castrol. In my experience Castrol is an excellent oil. My 2014 Ford just rolled over 242,000 miles and even with factory 10,000 mile oil change intervals, from what I can see through the oil fill the top end of the engine is still clean. I've never had to remove the valve cover. It's using about a quart between oil 10,000 mile oil changes which is great because when it was new it used about a 1/2 quart between changes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
