Originally Posted by jlseagull
I use 93 octane, I've had the COupe for around 1500 miles as well. What are the estimates for the 05 Roadster...again, I know mine is 21/28.
Yes, sorry, I meant 93 octane also. My '05 roadster is the same as yours, 21/28. They are the same, it also says on the sticker that they average between 17 and 25 in the city, and between23 and 33 on the highway depending on options, driving conditions and driving habits.