Re: [Amc-list] Syn Lubes, a little more to it,,

[Frank Swygert <farna@xxxxxxx>]

AMSOIL has been recommending 7500 (or so) mile intervals for years. They 
do recommend changing the filter and topping off about mid way though. 
That would make a big difference even with dino oil. I run 5K intervals 
myself, though will change at 18 months or so even if not making 5K 
miles. If I switch to synthetic I'll go with 7500-8000 miles with a 
filter change and top off in between.

One of the "secrets" to high mileage oil change intervals is EFI. If 
you're running a carb stick to 3-4K or once a year. EFI doesn't pollute 
the oil as fast as a carb, which doesn't run as close to the correct 
mixture -- carbs almost always run a tad rich, which means more junk in 
the oil.

-- 
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
(free download available!)

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