Spector, to be clear, when I say “zero consumption” I mean the mark on the dipstick doesn’t move at all. Some will say that fuel getting into your crankcase can make up for oil consumed and the result is that this mark does not move … but testing I’ve done shows little or no fuel in my sample so I feel pretty confident saying my car uses (essentially) zero oil. Whatever is consumed is too small to be measured by the dipstick.
Patman, just be aware that Mobil 1 & 5K-6K mile intervals led to my car knocking like crazy for the first few minutes in sub-zero weather (at around 70,000 miles) … until I switched to Red Line, that is.
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Current theory seems to be that Mobil might be trying to make up for the lack of barrier additive with a higher viscosity index in their SuperSyn. Don’t be surprised if this doesn’t work 100% and your wife’s Civic experiences the same kind of premature wear mine did.
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However, my car went to about 95,000 miles without using a drop of make-up oil (mostly Mobil 1). If, after an oil change, it was 1/16” above the fill mark, it was still 1/16” above the mark when I went to change my oil & filter again 6,000 miles or so later. The piston slap wear still occurred, however.
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