Its a Mercedes thus I dont think anything but Premuium would be required unless of course it's a diesel ?? I had the C Class and that required Premuium 91+ grade so I cannot see the CLA using Regular gas ??Anyone know what the recommended fuel will be for the naturally aspirated engine? 87, 89, 91+ ?
I didn't know that (ST/regular gas)Interesting. It would be a good move to run on regular, with crazy gas prices and allDan's Focus ST is a turbo engine and 'suggests' regular... however, once tuned via aftermarket tuners they require minimum 93 octane. So, I'm guessing MB will tune it for regular gas and hopefully bump up the timing/boost if it detects zero knock and premium fuel.
Yah... a big misconception a lot of people have with octane is that they assume the higher the octane the more power you make. Its actually the opposite.I didn't know that (ST/regular gas)Interesting. It would be a good move to run on regular, with crazy gas prices and all
I guess that I'm one of "a lot of people" who think that you can get more useful energy (and power) out of high-octane fuel than low. High-octane gasoline actually burns more slowly than low and is more effective at transferring energy from the expanding gases to the pistons and crankshaft. Of course, the spark timing has to be set up right to take advantage of that. I used to pilot my own plane quite a bit, and the guys who raced cars at the local track would come by the airport to purchase the 100-octane gasoline available for the aircraft. They ran very-high-compression engines and needed that octane to be able to make use of them.Yah... a big misconception a lot of people have with octane is that they assume the higher the octane the more power you make. Its actually the opposite.
You'll make more power running a lower octane fuel as long as you aren't getting any knock.
Unless you increase timing, and/or boost then the higher octane is worthless.
In other words, you want the lowest octane you can run without detonating and you'll make the most power.