Old man at the Benz dealership says he’s been driving the same car for a long time and usually only puts in 87 octane in sprinkled with 91 every few times. What problems could this cause? Do I have to put in 91?
Disclaimer: I’ve owned (paid off) the car for 6 years and do put in 91, but trying to cut costs.
The old man is on the right track with the sprinkling. But the issues will be like everyone else is saying with the pinging and the efficiency issues but will take longer for it to be an “issue” that needs to be fixed now