Amsoil causing lifter noise?
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From: Woodstock, Ont , Can
RE: Amsoil causing lifter noise?
ORIGINAL: twiceretired
Question: wouldn't bleed down be more a function of film thickness and strength, rather than molecular size?
Question: wouldn't bleed down be more a function of film thickness and strength, rather than molecular size?
Ron
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RE: Amsoil causing lifter noise?
Viscosity and film thickness/strength are seperate issues with oils. The trick, as I've been learning so far, is to find the balance. I use a 5-50 engine oil, and am often critisized for using something so low as a 5w. I've been researching this, and as I've mentioned to KBFXDLI, I know it works, just not WHY it works. I've put together a couple of pages on it, and sent it in to the expert who's been schooling me for final aproval. I don't want to mis-state anything in my conclusions. What I'm lacking to date is the realationship between viscosity, film thickness and heat (all three). The oil I'm using has a film thickness of about 2X that of a dino oil, so even at a 5W, I'm getting adequate protection. That's why I suspect that the thickness is the key to the bleed down issue, amoung others. When I get this all together, I'll offer it up for consideration.
I'd only be guessing about Amsoil, but if they claim a 50W, then their oil MUST flow at the given test rate, at temperature. Film thickness/strength could easily vary some, but here again, I'm still waiting to find out how heat affects that thickness as the oil travels through it's various viscosities.
Frank
I'd only be guessing about Amsoil, but if they claim a 50W, then their oil MUST flow at the given test rate, at temperature. Film thickness/strength could easily vary some, but here again, I'm still waiting to find out how heat affects that thickness as the oil travels through it's various viscosities.
Frank
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