3carmonte

The highest octane gasoline we can get (at the pump) here in the USA is 93 Pump Octane which is 98 Research Octane Number or RON. In select locations, 93 pump octane non-ethanol gasoline is available. This is all I use in my SC-Elise. The ethanol will cause pinging. I've experienced it in other vehicles. I also blend this pump gas with a VP-Racing fuel product "C-10" which is 105 Octane non-ethanol by itself. I mix 1 gallon of C-10 to 4 gallons of 93 Octane Sunoco non ethanol. The engine both purr's and screams on this mixture. (This is all un-leaded fuel by the way).

Hi Marvin, I went through this with my Elise SC. Texaco-Havoline and Shell Helix were both recommended but only available in Europe. Through research with Shell, I learned that the oil we're looking for is available under...wait for it...Pennzoil in the USA. Here is what I use and where I get it. (It's not the sulphur ladden Pennsylvania state crude that grandpa used to use...) Shell Helix Ultra 5W-40 Fully Synthetic Engine Oil - API SN/CF Pennzoil PN#550022576 Ultra 5W-40 European Full Synthetic Motor Oil (6 quarts) "Econo-Box" is 24 quarts PN# 550023653 Best Line Oil in Tampa 1-800-382-1811 1-813-248-1044 AL Garcia III Ordered 01/31/2014 Case of 24 Quarts $197.00 + Tax ( two weeks) Received in 5 weeks http://www.bestlineoil.com/contact.php Have a Technical Question about a Shell Lubricant Product? - 800-237-8645 Or, Total Quartz 9000 5w40 oil is available also in the USA and passes the criterion. *You will have trouble getting any "SL" spec oils now. Catalytic converters and the EPA have mandated "SM" spec which was replaced by "SN" now (as of this post). -Happy Trails!