Tom/Barb wrote:
I think many writing here aren't old enough to remember how many miles we were getting between rebuilds on car engines when the gas was leaded.
we were lucky to get 50k miles before it would smoke like a smudge pot.
I wish my aircraft engine had as much technology in it as my Jeep does.
Let's do a little math.
Even at just the (obviously) conservative manufacturers TBO of 2,000 hours, if we use as a parallel to flying WOT a car cruising down the Interstate at 60 mph, 2,000 x 60 mph would be 120,000 miles before overhaul.
That's a long way past 50k miles on my 1953 built engine designed decades earlier.
My engine is currently at nearly 50% beyond TBO and 'on condition' with compression in the mid 70's.
BTW, I run 160 mph at 10.9 gph at cruise, as per common sense and the POH for my engine it ALWAYS runs at WOT. So 160 mph for 3,000 hours, and averaging out head / tail winds, it's covered 450,000+ miles so far. Not bad for +/- 70 year old technology huh?