Been driving the Seville to work lately while the Brougham was in the shop (again). HT4100 engine, the puniest engine Cadillac ever produced, runs 87 octane unleaded gasoline. The thing doesn't ping at all during my commute. It's quiet and reliable.
My Brougham is a different story.
I have to run the GOOD stuff in it and it STILL pings. EVERYTHING checks out on it. Every danged mechanic says the thing is practically brand-new. Everything is to spec or better.
So, what the hell is with the pinging? Is it really pinging? What else can SOUND like pinging under light to moderate acceleration on light to moderate inclines?
What could be easily missed on inspection? I don't recall having a pinging issue before, even running 87 octane.
I'll tell you what I think it is: EVERY time gas prices go up, quality goes down. EVERY danged time. My dad pointed this out to me and while I'm not one to believe in every conspiracy theory out there, I think he may be on to something.
I don't mind buying premium gas; it's not that much more expensive, really. But I do mind HAVING to buy it to avoid a problem I shouldn't be having in the first place. It's just a waste of money, really.
Sorry for the rant but I'm hoping someone will say, "Okay, go have a beer and relax. This is what might be causing your engine to ping, despite "sophisticated" technology to compensate for it." OR "Okay, go have a beer and relax. The sound you hear may also be..."
This site has been so helpful and I don't know that I've offered much in return except more problems. At least I give people something to talk about, even if it's behind my back. LOL
Sincerely,
Disgusted with Myself & My Car =P
My Brougham is a different story.
I have to run the GOOD stuff in it and it STILL pings. EVERYTHING checks out on it. Every danged mechanic says the thing is practically brand-new. Everything is to spec or better.
So, what the hell is with the pinging? Is it really pinging? What else can SOUND like pinging under light to moderate acceleration on light to moderate inclines?
What could be easily missed on inspection? I don't recall having a pinging issue before, even running 87 octane.
I'll tell you what I think it is: EVERY time gas prices go up, quality goes down. EVERY danged time. My dad pointed this out to me and while I'm not one to believe in every conspiracy theory out there, I think he may be on to something.
I don't mind buying premium gas; it's not that much more expensive, really. But I do mind HAVING to buy it to avoid a problem I shouldn't be having in the first place. It's just a waste of money, really.
Sorry for the rant but I'm hoping someone will say, "Okay, go have a beer and relax. This is what might be causing your engine to ping, despite "sophisticated" technology to compensate for it." OR "Okay, go have a beer and relax. The sound you hear may also be..."
This site has been so helpful and I don't know that I've offered much in return except more problems. At least I give people something to talk about, even if it's behind my back. LOL
Sincerely,
Disgusted with Myself & My Car =P