quote:
Originally posted by sgtgeek:
Going on "sound" only is very dangerous....Julia Roberts laughs through her nose so I guess you'd walk on that "bargain" also huh?!
Piston Slap Update - It's gone - I think
- Thread starter Cuplable
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That was precisely my experieince with my '96 Accord I4. Recite the mantra: "Embrace the tick - it's your friend."
It's not just GM engines, as was pointed out. My '95 Honda 1.5L had it bad from about 80,000 miles on. Car still runs great with 180,000+ on the clock.
The car was quietest with Red Line and early batches of Valvoline Max-Life ... both of which were loaded with moly.
It was noisest with Mobil 1 ... we had an entire thread here years ago about why this is. Terry believes that it is merely because Mobil 1 is thinner than other oils in the same weight.
I agree that there's a lot to this theory ... but I don't know if it explains it all.
My Nissan and its controversial QR25DE engine is quite noisy upon start-up, even when it was new. The injectors make a racket, it has a pinging-like rattle on acceleration (even with 93 octane) and had some light piston slap from day one.
But, I've neen using Schaeffer oil for most of the engine's life and I don't really notice it so much anymore.
--- Bror Jace
The car was quietest with Red Line and early batches of Valvoline Max-Life ... both of which were loaded with moly.
It was noisest with Mobil 1 ... we had an entire thread here years ago about why this is. Terry believes that it is merely because Mobil 1 is thinner than other oils in the same weight.
I agree that there's a lot to this theory ... but I don't know if it explains it all.
My Nissan and its controversial QR25DE engine is quite noisy upon start-up, even when it was new. The injectors make a racket, it has a pinging-like rattle on acceleration (even with 93 octane) and had some light piston slap from day one.
But, I've neen using Schaeffer oil for most of the engine's life and I don't really notice it so much anymore.
--- Bror Jace
The "piston slap" termanology is thrown on just about every engine noise problem under the sun, That's why it's overdiagnosed. I'm sure some engines have clearance issues whether by defect or design that cause noise. You can't look at those piston slap websites and honestly say that there isn't quite a bit of "chicken littlism" in it.
For the record I've had engines that are loud, and never had a problem with them. My 3800s have very short piston skirts, but no noise. GM's 60degrees have always had a little noise to them, but IMO it's mostly top end. Iron Dukes had a distintive rattle, but last almost forever, who cares?
If your worried about resale value, then don't buy any car. Every day I hear people driving around with sqeualing brakes, belts and knocking engines, I'd say the majority of people don't really care.
For the record I've had engines that are loud, and never had a problem with them. My 3800s have very short piston skirts, but no noise. GM's 60degrees have always had a little noise to them, but IMO it's mostly top end. Iron Dukes had a distintive rattle, but last almost forever, who cares?
If your worried about resale value, then don't buy any car. Every day I hear people driving around with sqeualing brakes, belts and knocking engines, I'd say the majority of people don't really care.
T-Keith:
Which oil do run in your 3800s? I believe this is the second time I've asked you this question and still waiting for an answer.
Which oil do run in your 3800s? I believe this is the second time I've asked you this question and still waiting for an answer.
"You can't look at those piston slap websites and honestly say that there isn't quite a bit of 'chicken littlism' in it."
Honestly? You're right.
It's way overblown ... bit it is real.
--- Bror Jace
Honestly? You're right.
It's way overblown ... bit it is real.
--- Bror Jace
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