i dunno, but given the choice with only a 20-25% diff in the cost, i would sure run the 100LL to get better longterm results for my oldskool motor design. while i realize there are stc's for the cheaper stuff, have had way too many problems with our high-performance stuff with car gas of any kind...lots of the snowmobiles we build are 200HP +...and our stockers are all 150+...how much can a guy really save if your motor won't go TBO...!?
So I worked out the figure on 1 of my birds, with a 985.
1600 hr TBO
20 gph
$4/$6
32,000 gallons gas x 4 = $128,000
32,000 gallons gas x 6 = $192,000 difference $64,000
overhaul $25,000
guess I'll run mogas when I can
another bird
12 gph, 2000 hrs
same formula $96,000/ $144,000 overhaul $30,000.
As said above different strokes for different folks.
I'm just CHEAP!!
GT