lucarvette

What is the oil drain plug torque for a 1992 LT1? Thanks

davewhtt

I have never seen someone use a torgue wrench on an oil drain plug? But ive been wrong before?

Joe C

I've done it, but then again, I torque damn near everything. it's been awhile since I've owned an LT1 car (96 coupe), but as I recall, it's 15 ft.lbs.

don hall

For security, it is recommended you use a crush washer, and
replace it every oil change.

QCVette

I have had 2 '94's and 1 '95. All of them did not use a crush washer. The OEM drain plug had a rubber seal fixed in the head of the plug.

I checked my '94 service manual and it shows the torque to be 16 lb-ft. (although I have always tightened by hand without a torque wrench.)

lucarvette

[QUOTE=QCVette;1587860346]I have had 2 '94's and 1 '95. All of them did not use a crush washer. The OEM drain plug had a rubber seal fixed in the head of the plug.

I checked my '94 service manual and it shows the torque to be 16 lb-ft. (although I have always tightened by hand without a torque wrench.)[/QUOTE


for other cars i always buy a new drain plug.
for the corvette what would you recommend to do? use the old one or buy a new one?
any oil filter recommmended?
I have a gallon of Mobil1, is it good for a 1992 Corvette?
Thank you

WVZR-1

If the car is "NEW TO YOU" a new drain plug might be the way to do your first change. Your Mobil1 if it's the correct viscosity is fine but there's maybe 15 - 20 different Mobil1 products. Yours is what and the viscosity is? The oil filter of your choice, NAPA Gold gets mentioned regularly, WIX also but maybe you've used "other than" so it's your car.

For a '92 you could expect to find maybe a 1/2-20 plug and that would have a washer OR it could be a M12X1.75 and that would have the seal that "QCVette" mentions, You might buy both and let them understand that you'll be returning one. You could check the current one first without removing, wrench size that fits would be an indicator and a Metric plug will be likely marked as such.

GM # 3921988 is 1/2-20 and the washer is a GM# 14090908. the metric is a GM # 11562588. GOOGLE should display images for you if you need them. I like OE/GM hardware.