Originally Posted by kschachn
Originally Posted by OVERKILL
Originally Posted by 69Torino
Or Hyundai Santa Fe piston slaps on Mobil 1, but doesn't on Valvoline Full Synthetic Maxlife. I'm only using Mobil 1 right now because I got it on Autozone clearance.
Then it probably doesn't slap. Piston slap is the result of excessive piston to bore clearance, which no oil is going to magically rectify unless they come with a set of pistons closer to the diameter of the bores.
Correct. My old Honda has noticeable piston slap and the choice of oil or viscosity has no influence on the noise whatsoever.
Maybe it's a rod bearing then.
Originally Posted by OVERKILL
Originally Posted by 69Torino
Or Hyundai Santa Fe piston slaps on Mobil 1, but doesn't on Valvoline Full Synthetic Maxlife. I'm only using Mobil 1 right now because I got it on Autozone clearance.
Then it probably doesn't slap. Piston slap is the result of excessive piston to bore clearance, which no oil is going to magically rectify unless they come with a set of pistons closer to the diameter of the bores.
Correct. My old Honda has noticeable piston slap and the choice of oil or viscosity has no influence on the noise whatsoever.
Maybe it's a rod bearing then.