3 ms·
In the 1980s, with conventional motor oil, 3k mile changes made sense. It was cheap insurance. With engines made today and synthetic oil, 10k mile intervals are
by throwawayboise 5y ago
In the 1980s, with conventional motor oil, 3k mile changes made sense. It was cheap insurance. With engines made today and synthetic oil, 10k mile intervals are not unusual. The quick-lube places will still put 3k miles on their reminder sticker, because it's more business for them.
Also be sure they are actually using the correct synthetic oil for your car, and not conventional 10w40 that would be appropriate for a 1978 Chevy.
- sokoloff 5y agoThe advent of closed-loop fuel control has helped oil service life as well, but I think the “it’s cheap insurance” psychology is a message that makes sense to primitive human brains well beyond the underlying engineering data, leading us to over-service expensive things.