My car is rated for it. The owner's manual says to use gas of at least 91 octane, and in these parts that only comes out of the premium pump. At $3.50 a gallon.Digmenow said:I keep reading posts where people say they only use Premium.
The best mileage I've gotten out of a tank was 17.5 mpg, and that was on my recent trip. All freeway miles.BenzToy said:I spend a great deal of time trying to improve on the 14/15 mpg I get, but nothing has helped much so far. It's $3.11 for 91 octane around here.
http://www.benzworld.org/forums/r-c107-sl-slc-class/1261888-sl-slc-city-country-fuel-economy.html?highlight=milageA&L's300SL said:Touch wood, my 300SL is at this moment, running like a dream. I took it for a run to northern Victoria with my wife, to mystery shop some of our resellers for work. With the fuel card to pay for it, I decided to take the SL rather than my company car. Even though I don't have cruise on the SL, I felt the car was not as tiring as my work car overall. I was probably having too much fun.
About 60% of the drive was freeway, with the rest great, fast country hwy roads, I will have to drive again. I tended to sit on about 117kms/hr or 72mile/hr for the open road with our posted speeds at 110kms/hr [damn radar cops and fixed cameras].
We drove 620kms on 62 litres of premium 98 octane or 385miles on 16.3USgallons. This is 1lt/10kms.
My normal driving is a mixture of city/country as I live in a coastal area and use freeways to get to the larger towns. In this driving I get about 510Kms on 62litres of premium 98 octane or 317miles on 16.3USgallons. This is 1lt/8.2kms
I know having a 3lt I6 should be more economical and I'm not trying to bring up any I6 vs V8 argument. I'm trying to get an idea of the sort of economy and milage we get as drivers using different fuels in different driving conditions. It will also give other enthusiasts an idea of what to expect owning one of these great cars, although driving style and road conditions will make a difference.
SL's and SLC's were designed for the open road as a touring sports car, with suspension and comfort to match and with the increasing cost of fuel, economy to a degree now plays a part in our love of driving these fantastic cars.
If you want to, use this handy convertion calculator to compare
Conversion Calculators section two
What economy YOU getting?????????
I'd be interested to know!
With the kind of mileage I6 SL owners get, 30 SMILES PER GALLON seems like a standard economy rate.nobby said:Let me drag this out again....
30 SMILES PER GALLON.
Who really cares? It's a fun car.
Before I get a lecture on gas mileage indicating performance and efficiency...Ya Ya whatever. But I don't lose sleep over it.
Atta boy.BenzToy said:I get at least 30 SMILES per gallon too, it's those 40 to 50 frowns per fillup that I'm trying to minimize. I look at the weather every day before I head out to work and if there is not much chance of rain, the SL gets the call, regardless of the MPG.