I love my new gears...now a question

stevstum · 02-19-2003, 11:00 PM

I do a lot of highway driving and my car has 137,000 miles. I hve to put a quart of oil in every week and a half to two weeks. The average speed on the highway here is 70 to 75 mph.That puts me at about 2100 to 2300 rpms. And last of all I drive a 70 mile round trip to work and back. My question is how much is to much when it comes to cruzing on the highway in regards rpms.

88workcar · 02-20-2003, 06:38 AM

Don't sweat it, when you need an engine, you need an engine. This question is why papa's old ford didn't come with a tach.

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

stevstum · 02-21-2003, 04:50 PM

It is wierd with the oil leak. I can check it everday for the two week period and it will be fine. Then the next day the oil light will come on and I will be a half a quart low.

I have been driving my car for a week and the gear whine is getting worse. I made an appointment, but he can not get me in till next week. I don't even like driving my car because it sounds like an old truck when slow down. And when I am behind a car on a two lane and down shift to pass it sound like an DC10.

02-19-2003, 11:00 PM	#1
stevstum Registered Member Join Date: Mar 2000 Location: Salem, Or. USA Posts: 233	I love my new gears...now a question I do a lot of highway driving and my car has 137,000 miles. I hve to put a quart of oil in every week and a half to two weeks. The average speed on the highway here is 70 to 75 mph.That puts me at about 2100 to 2300 rpms. And last of all I drive a 70 mile round trip to work and back. My question is how much is to much when it comes to cruzing on the highway in regards rpms. __________________ Steve Stumbaugh 89 LX 5.0 5sp, Removed air silencer Mac High Flow Air Filter Motorcraft 8mm wires Autolite platinum plugs Mac O/R h-pipe Flowmaster American Thunder 3:55 gears Accel Super Coil (42,000) 75 mm Mass Air Meter

02-20-2003, 06:38 AM	#2
88workcar Registered Member Join Date: Oct 1999 Location: Pierre Part, La. U.S.A. Posts: 1,850	Don't sweat it, when you need an engine, you need an engine. This question is why papa's old ford didn't come with a tach. __________________ 88workcar 1988 Mustang LX 342. 417rwhp @ 6800. 28 X 10 ET Drag, 4.30s, 10.69 @ 126.43 1.42 60ft. 11.13 @ 127.7 on BFGs 1.72 60ft Rice Hater # 42 To be old and wise, You must first be young and stupid I'm somewhere in tthe middle.

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.

02-21-2003, 04:50 PM	#4
stevstum Registered Member Join Date: Mar 2000 Location: Salem, Or. USA Posts: 233	It is wierd with the oil leak. I can check it everday for the two week period and it will be fine. Then the next day the oil light will come on and I will be a half a quart low. I have been driving my car for a week and the gear whine is getting worse. I made an appointment, but he can not get me in till next week. I don't even like driving my car because it sounds like an old truck when slow down. And when I am behind a car on a two lane and down shift to pass it sound like an DC10. __________________ Steve Stumbaugh 89 LX 5.0 5sp, Removed air silencer Mac High Flow Air Filter Motorcraft 8mm wires Autolite platinum plugs Mac O/R h-pipe Flowmaster American Thunder 3:55 gears Accel Super Coil (42,000) 75 mm Mass Air Meter

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