[moderator note - this thread has already come up several times, and you all are having too much fun discussing this freely. I will have to end this...Ow! hey! stop > rattle dry for about 1.5 seconds while pressure built up Rich, I heard that the Purflux filter was the one that didn't have the check valve and allowed oil to drain to the pan. > Shouldn't the amount of time that passes is also a factor? I have heard this, but don't have a good scientific reason to believe it. Does oil go bad just sitting in a bottle or in the crank case of an engine? Does having it exposed to air or having combustion byproducts suspended in it cause it to age faster at room temperature? I bought my first DeLorean with 8600 miles on it about 3(?) years ago and I'm fairly sure it had the original oil in it. I drove it home that way. Figuring out that screwy oil drain plug made me delay changing it even longer. > What kind of oil do you use? John, I've been using Castrol 10w-30. My reason for this brand is because their brake fluid has such a great reputation. > Especially leery of multi-viscosities. Bill, I've heard this story about the thickeners too. What I heard is that the oil they start with is a fixed viscosity that represents the first number before the "W". Then they add junk to it that thickens with temperature. The higher quality "cleaner" oils are the ones with the lower viscosity range implying that it is more real oil and less junk to make it thicken up. This raises a question: I always drain oil while the engine is hot. My reasoning is that hot oil is thinner runny-er oil that will drain better. But if it has thickeners that stick everywhere in a hot engine, then maybe it would be better to change oil while it's cold. WTF? > Do run Fram and Purolator filters. At least from external appearances, the Fram vs. Purolator filters (the ones that fit DeLorean) are different enough that I don't think they were made at the same plant -- or at least not to the same quality standards. And I have heard the Fram horror stories, too. Specifically, a friend of mine who worked as a service manager at Firestone chains claimed that every time & without exception that when a filter got stuck on a car, it was Fram. The housing would collapse or pull off leaving the gasket/ring stuck on the block. I would never use a Fram even if someone gave them to me. But I have used several Purolators on DeLoreans. I've never noticed the pre-lube rattle problem ever. I suppose I'm not paying attention. Walt Yahoo! Groups Sponsor ADVERTISEMENT <http://rd.yahoo.com/SIG=12c09kf5p/M=267637.4116730.5333196.1261774/D=egro upweb/S=1705126215:HM/EXP=1071169829/A=1853619/R=0/*http://www.netflix.com /Default?mqso=60178356&partid=4116730> click here <http://us.adserver.yahoo.com/l?M=267637.4116730.5333196.1261774/D=egroupm ail/S=:HM/A=1853619/rand=499096217> To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
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