djazzmo Posted March 25, 2008 Report Share Posted March 25, 2008 Still trying to find a good used Caddy. I am currently looking at a 1999 SLS with 90K vs a 2000 SLS with 117K. The 1999 is in slightly better condition but I was thinking of going with the higher mileage 2000 because I think that is the year the Northstar started running on regular gas. In my area there is a cost difference of about $.20 a gallon between regular and premium. Also is anyone using mid-grade gas instead of the premium that is reccomended? Does that affect performance or fuel economy? Link to comment Share on other sites More sharing options...
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