Here's some more info to think over..... there is a growing trend for "Max Life" oil filters..... but something has to give. If a filter is designed to last longer, it has to pull out less trash to keep it from plugging up, right? I just emailed Purolator, and they back this simple fact up. The "BOSS" is their expensive long life filter. The "One" is their cheaper filter. Here are the facts..... direct from Mann Hummel, the makers of the Purolator line of filters.
" Hi Bob, here are the Micron and Efficiency numbers you requested.
The PBL22500 BOSS is 99% efficient at 46 microns. Life expectancy is 15,000 miles
PL22500 ONE is 99% efficient at 25 micron. Life expectancy is 10,000 miles.
Thank you for your interest.
Mann+Hummel Product Information
Product Information (800) 526-4250)
MANN+HUMMEL Filtration Technology, 1 Wix Way, Gastonia, NC, USA"
Given the choice , I'm going to run the PL22500 ONE Filter!!!!