My 90b12 pings too unless I use premium fuel. During the winter I can't really detect any pinging. My car has 142000 miles on it and has had everything but the 02 sensor replaced and a I plan on replacing the plugs in a few weeks. I did notice in the manual nissan states that pinging under acceleration or driving up a hill is good for fuel economy since the best gas mileage is gained while the plugs are the hottest. I don't know how true that is since everyone says pinging will kill your cylinders. I just use premium fuel and don't have to think about it.
Posts by dschrier
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Actually my timing chain was replaced end of 2000. I guess the chain guard had broke so all summer long while I was driving the chain was tearing through my engine. I always heard a sound but people just told me it was either my fan belts which were bad or an engine panel rattling. Well one day I came out and my car had all it's oil underneath it oopps. It cost like $1200 for it to get fixed. The car pinged before and still does so I doubt it's a result of the timing being off, but who knows cause cars aren't really my experties.
Yeah, I've read that. Would using premium fuel take care of that problem? I also seem to get better gas mileage using premium. I get around 40-44 if I drive my car like a baby and 32-34 if I drive normally which seems pretty good for a 90 sentra. I could always just suck it up and take it in but I'd rather not waste any money on this car since I'll be grad. from college in a year and I hope I can find a nice 94 se-r to purchase ...
I have gotten 40mpg once before,but I just recently started using texaco gas instead of Gibbs and Mobile. I dunno how this happened, but I drove 170miles and only filled up with 3.5gal equating to 48mpg, that seems realllly high, even though some people have said they have gotten about that with their sentras on high way driving. I don't use AC either so that helps. I used to get about 25mpg when I first got the car but after several bottles of fuel cleaner and mantainance the gas mileage greatly improved.
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