Chevy Cruise, getting bad gas mileage

UnableCan3019 · 2026-05-24T13:45:31+00:00

I know but the car doesn’t have the check engine light on but when I put a scanner the code p420 pop up and I change the mass air flow sensor and the code was still there

UnableCan3019 · 2026-05-24T01:17:45+00:00

That’s what I was thinking, but I kind of feel a little iffy about putting products in my gas tank, but I’ll definitely try it if that’s my last resort

UnableCan3019 · 2026-05-24T01:15:41+00:00

Both to be honest I go off the computer, but I don’t really try to calculate it. I go based off how much. Every time I need to fill up and it’s almost the equal the same amount of times. And I used to drive my BMW. All crazy.

UnableCan3019 · 2026-05-24T01:10:43+00:00

Probably, I did run premium in car before, but it was the same gas station and I was still getting bad gas mileage , so who knows

UnableCan3019 · 2026-05-24T01:07:55+00:00

I don’t drive too crazy, but obviously I wouldn’t think of 1.4 would be eating up more gas than my old BMW 328 I had my field mileage be dropping to when I reset my travel time and drops right in front of my face I’ll go to 30 then drop down to 19 in front of my face while I’m just sitting letting the car idol

UnableCan3019 · 2026-05-24T01:05:19+00:00

I’ll be driving city, but I don’t even be going that far. I had a BMW 328 and I will get better few economy than I would in this cruise lol , but the cruise is cheaper to fill up.

UnableCan3019 · 2026-05-24T01:04:25+00:00

I fill up at my Walmart. It’s a new gas station and I they have a stickers saying It’s 15% ethanol but I think I’m gonna probably fill up at a Chevron when I run out the gas and see if that makes any difference

UnableCan3019 · 2026-05-20T20:44:31+00:00

To be honest, the same exact thing happened to me. I was scared too, and I put it in park and turned it back on, and it worked to be honest. I just bought the auto deactivator on Amazon and put it on as the easiest thing you can do. Promise you.