Bob Denman
New member
Tanked up yesterday... 38.2mpg!
This warmer weather helps with fuel economy in fuel injected engines... The less-dense air requires a less-dense charge of fuel... :2thumbs:

Tanked up yesterday... 38.2mpg!This warmer weather helps with fuel economy in fuel injected engines... The less-dense air requires a less-dense charge of fuel... :2thumbs:
:agree: If all other things are equal, regular gas will actually give slightly better mileage than premium, due to its faster burning and higher heat content. If the engine requires premium fuel, and compensates for the use of regular, the opposite will be true. The retarded (timing) engine will not be as efficient.Quick reply to the O.P.
When I run 87 octane (which the manual states is a possibility), my mileage is about 24-26mpg. When I run only the 91 octane, my mileage is 29-31mpg. These numbers are going about 65-70 mpg. I have a 2010 RT and I did cut about 5 inches off of the wind screen. I believe the main difference in mpg is due to the difference in the amount of timing advance the comuter will allow.
cheers
Actually it's pretty easy...
Drive like an old woman!(but leave the turnsignals off! :roflblack
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OK so you want them to drive like ME :roflblack::roflblack:?
I just got my 2011 Spider RTS. I am having the 600 Mile oil change today in Omaha. I am only getting 24 miles per gallon. I thought it should get better than that. Any suggestions?
I use high test in my 2011 Spyder RT-S SE-5 and have 2000 miles on it. I have been getting between 35 and 38 MPG on average and that is with a lot of stop and go. I do a daily commute from Stafford, VA to Ft. Belvoir, VA using either I-95 or US1 depending on traffic in the morning and evening. There is a lot of stop and go on either route due to high traffic volume. I have also noted that my fuel sender must not be very accurate. When the gauge shows almost empty, I still have over a 1/4 tank left. I have filled the tank and usually when it indicates near empty, I can only put about 4 gal of fuel in it so it appears I have at least two gallons left at that point.
I attached a PDF of my milage.
Seem to average 32-34 MPG US.