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Chevyguy · 02-21-2003, 02:41 PM

500 - 700 miles per quart according to my calculations. That is pretty high consumption. Assuming you have no oil leaks, and your PCV screen is clean and new, and a new Motorcraft PCV valve.

You have either worn rings, or shot valve seals or even worn valve guides. You can run a compression test to help rule out ring wear.

2000 - 2300 RPM cruise is not too bad. Even with 2.73 gears, without overdrive that will only get you to about 60 mph or so, and remember overdrive was not out in force till the 80's

02-21-2003, 02:41 PM	#3
Chevyguy Backyard Mechanic/Chemist Join Date: Feb 2001 Location: Acton MA USA Posts: 435	kinda high oil use 500 - 700 miles per quart according to my calculations. That is pretty high consumption. Assuming you have no oil leaks, and your PCV screen is clean and new, and a new Motorcraft PCV valve. You have either worn rings, or shot valve seals or even worn valve guides. You can run a compression test to help rule out ring wear. 2000 - 2300 RPM cruise is not too bad. Even with 2.73 gears, without overdrive that will only get you to about 60 mph or so, and remember overdrive was not out in force till the 80's __________________ 2001 Crown Vic Maurader Airbox/MAF, DR chip Edel IAS shocks Single exhaust :wtf: 93 P-71 Vic interceptor Backup car now 90 5.0 LX Notch SOLD 74 Chevy Laguna type S-3 454 under construction Currently apart undergoing bodywork.