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SteelBlueZR1 · 10-23-2012

8,500 mile 1991 ZR-1 has not used any motor oil in the past 5,000 miles, since oil change. Motor Stock, 10-30 Mobil 1 High Miles. Hard driving seldom, except for 2 recent autocrosses. Nowhere around Baltimore to safely explore ZR1 limits without going to jail.

10-23-2012	#4
SteelBlueZR1 Join Date: Aug 2011 Location: Evergreen, Co. Posts: 344	Re: How many miles per quart of oil? 8,500 mile 1991 ZR-1 has not used any motor oil in the past 5,000 miles, since oil change. Motor Stock, 10-30 Mobil 1 High Miles. Hard driving seldom, except for 2 recent autocrosses. Nowhere around Baltimore to safely explore ZR1 limits without going to jail.