Re: Oil filter
I always run full-flow filters on my engines, some have been inserted, some babbit. Having said this, I worked at LAX for almost 10 years, during the time the EPA was clamping down on a lot of things, including waste oil filters. We switched-out the filters on our police fleet from OEM to a cleanable filter, sorry can't recall the brand. They had an extremely fine screen in them. They worked well, so I bought one for my 6.2 liter GMC diesel. I cleaned it religiously a few times, but never found any crud in it, so started cleaning it at every 2nd oil change. When I sold it 262,000 miles later, it still had no engine problems. So IMO, a full-flow filter is still highly recommended but I think not critical, if using modern oils. 2 diesel trucks later, I have stock filters but change them every-other change. The color of the oil doesn't tell you a lot.
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