Some engines just burn cleaner that others.... GM seems to have problems getting cylinder sizes accurate to keep pistons from slapping around in there... just do a little research on the internet, it is pitiful... not to mention the metal shavings in their Corvette motors… pretty pathetic really.
I will take flow on the synthetic Wix filter over absolute filtering anytime. It is a wire mesh backed synthetic media filter and the rest of the filter is made of high quality components. If you think about how many passes a filter receives of the full complement of oil in the engine during one...
Doesn't make sense to me that an international filter manufacturer would stray from a standardized filter rating system, sorry, I just don't buy it. The red to red , blue to blue thing just doesn't make any sense either with the equal sign in between.
If you follow the mathematical formula for calculating Beta ratios, the Beta particle size is always expressed to the left of the equals sign, I don't want to argue, that's just how it is. Plug the numbers into the formula, there really is no wiggle room to debate.
http://machinerylubrication.com/Read/564/filter-beta-ratios This is a little more descriptive about the beta curves over time.
Sampling and interpreting oil samples on large industrial sealing, bearing and hydraulic systems is part of my everyday job .
Originally Posted By: Bottom_Feeder
Any of them will work fine save for the NAPA Platinum (aka Wix XP) which has poor efficiency. The NAPA Gold (standard Wix) would be fine for what you're doing as would the aforementioned Fram Tough Guard. Both can do your mileage and be 99% efficient in the...