Are you SURE it requires premium fuel??![]()
There are quite a few people here who have successfully been running regular fuel for many years/hundreds of thousands of miles if not millions collectively when their mileage is all added together - in fact, I'd say it's likely that a significant percentage, if not a majority of Spyders run on regular fuel most if not all of the time AND many return about 40-45 mpg doing it, some a bit less, some even better!! :lecturef_smilie:
Just type 'fuel' in the Search field; tick the 'Search Titles Only' box in the drop-down list that'll appear below it; submit the search; then use the thread titles to pick & choose which thread you want to read first!! There's quite a few threads addressing just this point. :thumbup:
Interesting. I would've thought that with a compression ratio of 12:1 + the engine would ping a hellen with regular unleaded. This is good to know!