-1
votes
1answer
26 views

Is 3m injector cleaner a good product? [closed]

I want to add an injector cleaner to a Nissan Tiida 2012. It has around 15000 miles and I never add any fuel additive. Sonax injector cleaner costs 20 dollars and 3M costs 10 dollars. Which one do you ...
2
votes
2answers
1k views

Car runs uneven and jerky, but why? (Mazda 626)

I have a Mazda 626 (sedan) -97 and lately its been running uneven and jerky. Have had in in for repairs and changed battery, oil+filter and spark plugs. Still had problems and tried to use a engine ...