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edpontiac91 · 03-18-2008, 06:58 PM

I had a 1998 Buick Regal GS a couple a years ago. I bought it used with about 75,000 and when it got to around 90,000 it would smell of oil when it got hot. Turns out BOTH the valve covers were leaking, although you could only see the front one. It is a fairly expensive job due to the amount you have to remove to get to the rear cover. I would guess that due to the fact that the GS models had the Supercharger, you would tend to drive it harder and that would lend it to be more prone to higher oil pressure. From what I heard before this recall, was that they had this problem for quite awhile. It could also be the extra BOOST pressure that causes them to leak. Top boost was around 7.5 pounds. I was running 20 pounds of boost in my 1989 Turbo T/A(with a manual boost control)and had to change my rear main seal 3 times and my oil pan was leaking, so I know that boost pressure can cause leaks you would not normally get.

03-18-2008, 06:58 PM	#16
edpontiac91 Join Date: Aug 2007 Location: Piscataway, N.J. Posts: 1,729 iTrader: (16)	I had a 1998 Buick Regal GS a couple a years ago. I bought it used with about 75,000 and when it got to around 90,000 it would smell of oil when it got hot. Turns out BOTH the valve covers were leaking, although you could only see the front one. It is a fairly expensive job due to the amount you have to remove to get to the rear cover. I would guess that due to the fact that the GS models had the Supercharger, you would tend to drive it harder and that would lend it to be more prone to higher oil pressure. From what I heard before this recall, was that they had this problem for quite awhile. It could also be the extra BOOST pressure that causes them to leak. Top boost was around 7.5 pounds. I was running 20 pounds of boost in my 1989 Turbo T/A(with a manual boost control)and had to change my rear main seal 3 times and my oil pan was leaking, so I know that boost pressure can cause leaks you would not normally get. __________________ 1991 FORMULA 350-GONE BUT NOT FORGOTTEN 1 of 1,197 with L98 Option/13.79@100 mph 1994 25th ANNIVERSARY TRANS AM GT -1 of ONLY 2,000 made/ Only 128 made with a *HURST* 6-Speed Manual and 91 with T-Tops and Compact Disc/ K & N Filtercharger/Magnaflow Performance Muffler/Air Foil- ORIGINAL MINT Arctic White Ultra Rare SURVIVOR. DAYTONA 500 PACE CAR Decal Kit! SOLD: 1989 Turbo T/A in 1991 it ran 12:18@115 mph Last edited by edpontiac91; 03-18-2008 at 08:17 PM.