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Old 11-28-2016, 03:06 PM   #7 (permalink)
LittleBlackDuck
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CT - '11 Lexus CT200h Luxury
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Quote:
Originally Posted by ever_green View Post
But how does the cla45 achieve much better consumption? I'm guessing they are using Atkinson cycle timing with lean burn or delayed open loop fueling.
I would guess that the driving conditions are different. When I owned a similar car the best economy was obtained by using the highest octane fuel available and driving like a granny. Even then it was pitiful.

These cars are designed to go like stink and economy is not what they do.

Is it the Mercedes you are comparing it to? If so then have a read about the technological differences in the engines. The merc has stratified direct injection which will explain the difference.

Simon
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