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Originally Posted by stevnmd
It sure sounds like pinging. I'm only running 87 octane. I only even PLAN on running 87 octane considering Nissan states that the minumum recommended octane level is 86.
I have considered the "bad gas" potential cause of the problem. The gas in it is from a gas station I have never purchased fuel from before. I have purchased from OTHER stations of the same company, but not that particular station. It's from Royal Farms, and it is their brand of fuel. Envoy. (I believe that's the brand name they use)
I had bad gas from a station once before in my '03 Honda Interceptor motorcycle and it pinged like CRAZY under acceleration. I added some Chemtool B12 to the tank and it cleared the problem right up. I am just about empty now, and will refill with a name brand gas from a station I've fueled up at with no problem before today. Maybe the problem will disappear, who knows?
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Could be the gas, but could be the exhaust, too! A bunch of us Tundra owners had exhaust manifolds that were over-tightened at the factory, and cracked.
Leaking manifolds go "tick, tick, tick"