I was reading on the old a.c. Delcos,upfs.the y were discontinued.now,theirs a.c. Delco irregulars g olds.98%@25-30 microns. I read from someone else,in single pass efficiency, the upf? Single pass was 8-10 microns. But don't remember the percentage,94 maybe?
Can the gold filter,filter smaller,like10-20 micron ,and at what %? Multipass?singlepass?
outdone still filters better,and fram ultra.or toughguard.
Can the gold filter,filter smaller,like10-20 micron ,and at what %? Multipass?singlepass?
outdone still filters better,and fram ultra.or toughguard.