I just bought my 89' Maxima from my parents and im trying to tune it up so it will run good and wont break down, it has 190,000 miles. My question is, is it safe to put that fuel additive in it that cleans the injectors and valves and stuff????? thanks for the help


-Brian

 

If you're referring to those bottles that you're suppose to add 1 bottle every 20 gallons of gas or every oil change or on every gas fillup (depending which one you get), I can't see why not. I add some every now and then, but whether or not it does anything, I haven't noticed anything significant yet.

 

i guess you can add those things i did try some of them but i guess every once in awhile they dont hurt



also if you want to keep your max switch over to quaker state higher mileage engine oil iv been useing that now and its great no complaints i also top it off with bosh oil filters i have around 180k on my maxima