No!Will the new 2.5 engine perform better if I use premium gas?
manual does state 87 or higher right?
I'll stick to 87 top tier gas
I did (mistakenly) put 91 in mine last week. My motorcycles all take 91, and I'd just gotten off my bike hopped in the car and needed to fill up. By instinct I hit 91 and didn't realize it until I was putting back the nozzle. No dyno runs or anything, but I couldn't tell the difference.
Where do you see this? The sky active engine was specifically designed to work with 87 octane.Mazda gets its HP numbers for the SkyActiv engines with 91 Octane fuel. The factory SAE numbers were achieved with 91 octane fuel/
Engine will NOT make more HP than the factory rated #'s but it will DEFINITELY make less HP with 87 octane fuel in hot weather. Engine will "detune" itself when it sense knock.
My Honda Civic will actually get a gas-cap idiot light when I once accidentally used premium. I don't think it damaged anything. It eventually went out after the next tank of regular. Long way of saying, No, I don't think it will improve anything.
Mazda gets its HP numbers for the SkyActiv engines with 91 Octane fuel. The factory SAE numbers were achieved with 91 octane fuel/
Engine will NOT make more HP than the factory rated #'s but it will DEFINITELY make less HP with 87 octane fuel in hot weather. Engine will "detune" itself when it sense knock.
Hot air has less density and less oxygen than cool air so the engine will make less HP when it's hot regardless of what octane fuel is used. The ECU supplies fuel in direct proportion to the amount of oxygen in each cycle.
However, to claim that Skyactiv engines will knock in hot weather (until the ECU detunes the engine) is not supported by any evidence I've seen. Certainly, there is a knock sensor and the engine will protect itself if, for example, you put old fuel in that only has 83 octane. But the engine is designed to not knock when using 87 octane fuel, under typical hot summer weather so the ECU won't need to reduce timing advance or act any differently regardless of whether you fuel it with 87 or 92 octane.