quote:Originally posted by Pontiac735:
From what I was reading in previous posts about piston slap,an oil with moly in it could prevent some of the noise.What are some oils that contain alot of moly?Thanks
You might want to do a search on "Piston Slap" such as:
I believe piston slap can be reduced through a combination of an additional AW/EP such as moly, and by increasing the viscosity of the oil. Offset wrist pins and shorter piston skirts (a designed-in "feature") is, I believe, the major cause of PS.
[ April 30, 2003, 07:41 PM: Message edited by: MolaKule ]
snatchface (cool name, btw...I guess ):
Indeed Amsoil doesn't have Mo, but that doesn't mean it doesn't have AW agents.
As for Mo and piston slap - I have seen no studies that say high Mo (or Mo) = low piston slap noise. M1 has Mo, but depending on the car (read piston design) it doesn't mean low noise, in FACT some folks have had higher noise from M1.
BUTT - I DO agree with Molecule - the plastic film from AW agents in general helps.
Practically speaking I have seen folks that are running a xW-30 get some slap noise improvement from a xW-40, mainly a 15W-40....