Lloyd-TX
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Posts posted by Lloyd-TX
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Being a die-hard Pontiac enthusiast (see sig), here are some short-lived but truly amazing Pontiac performance engines . . .
1968 1/2 400 Ram Air II
1969-1970 400 Ram Air IV
1971-1972 455HO
1973-1974 455SD
1977-1979 400 W72 (TA 6.6)
Average MPG by actual Sierra owners?
in GMC Trucks
Posted
2008 Sierra Denali 2WD, 6.2L, 6L80E, 3.42 gears.
On my typical greater Houston area commute I average 13.5 MPG so far. Only 3400 miles on my truck, so it may get a touch better when fully broken in.