humidweather New Member Apr 21, 2010 #1 ok.....1993 LS 1.8... Has anyone noticed an improvement in gas mileage or power using mid-grade opposed to regular octane????????8)
ok.....1993 LS 1.8... Has anyone noticed an improvement in gas mileage or power using mid-grade opposed to regular octane????????8)
Super-DA9 1990 DA9 LS Apr 21, 2010 #3 well here in australia our premium fuel is 98 and is available at almost any fuel station so I always run it in my car. I feel like my car runs like shit on 91 in comparison to 98, plus 98 is better for your engine anyway. but thats just my opinion.
well here in australia our premium fuel is 98 and is available at almost any fuel station so I always run it in my car. I feel like my car runs like shit on 91 in comparison to 98, plus 98 is better for your engine anyway. but thats just my opinion.
