Oil question

bobtodd · 05-13-2002, 08:10 PM

How many different ways can you lose oil? Valve covers, main seal, piston rings...anything else? My car is fine when I drive around normal with it, but after a couple of days of gettting on it it will drop just a smidgen. There is no white smoke when getting on it and dont smell any burning oil. The valve covers are spotless, so there isnt anything leaking there. I changed the oil a week after I got the car(over a month ago) and there was nothing leaking around the oil pan. Since the oil change I have added a quart as of today. The oil is clean. Will a compression check tell me anything? Anything to worry about the heads? Any ideas??

Mr 5 0 · 05-13-2002, 11:29 PM

bobtod:

Most 5.0's use a little oil as a matter of course due mostly to 'looser' oil rings - but not to the point of actually causing blow-by.

I bought my '90 LX new and have used about a quart every 1,600 - 1,800 miles ever since. Still does this after more than 116,000 miles. No smoke, no clogged PCV screen, no problem.

Relax.

302 LX Eric · 05-14-2002, 07:26 AM

How many miles on the motor since it was refreshened? Since you have been through the motor (installing the 10.5:1 pistons) - what type of rings did you use? I would assume that you didn't use the stock ones that Mr 5 0 is referring to. A good set of rings (C&A, Federal Mogul, etc.) on a refreshened motor should not be burning a quart of oil every 1,600 - 1,800 miles.

FWIW, my old 302 'burned' little to no oil whatsoever. I would get about 4.5 quarts out with every change (probably another .25 - .4 was in the head vallies, coating the rockers, etc.

E

05-13-2002, 08:10 PM	#1
bobtodd Registered Member Join Date: Dec 1998 Location: WI, U.S Posts: 255	Oil question How many different ways can you lose oil? Valve covers, main seal, piston rings...anything else? My car is fine when I drive around normal with it, but after a couple of days of gettting on it it will drop just a smidgen. There is no white smoke when getting on it and dont smell any burning oil. The valve covers are spotless, so there isnt anything leaking there. I changed the oil a week after I got the car(over a month ago) and there was nothing leaking around the oil pan. Since the oil change I have added a quart as of today. The oil is clean. Will a compression check tell me anything? Anything to worry about the heads? Any ideas?? __________________ 91 LX - 10.5:1 pistons, ported 289 heads, Ultradyne 588 cam, Cobra upper/lower, MSD, JBA long tube headers, Flowmaster, Richmond 4:10, roll cage, monster tach...FUN!! 95 SHO - K&N filter

05-13-2002, 11:29 PM	#2
Mr 5 0 Conservative Individualist Join Date: May 1997 Location: Wherever I need to be Posts: 7,487	Oil disappearance bobtod: Most 5.0's use a little oil as a matter of course due mostly to 'looser' oil rings - but not to the point of actually causing blow-by. I bought my '90 LX new and have used about a quart every 1,600 - 1,800 miles ever since. Still does this after more than 116,000 miles. No smoke, no clogged PCV screen, no problem. Relax.

05-14-2002, 07:26 AM	#3
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	How many miles on the motor since it was refreshened? Since you have been through the motor (installing the 10.5:1 pistons) - what type of rings did you use? I would assume that you didn't use the stock ones that Mr 5 0 is referring to. A good set of rings (C&A, Federal Mogul, etc.) on a refreshened motor should not be burning a quart of oil every 1,600 - 1,800 miles. FWIW, my old 302 'burned' little to no oil whatsoever. I would get about 4.5 quarts out with every change (probably another .25 - .4 was in the head vallies, coating the rockers, etc. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

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