I know that when an air conditioner is turned on in a car, it will put more load on an engine. On my 380, the AC makes it very sluggish and it will still go fast but I am afraid to push it. I never drive the car with the economy all the way in the red but usually 3 quarters or half way to the red.

How should I be driving usually with this big load on the engine from the A/C?? The engine has 420 000kms on it so I dont want anything to "explode".

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99 C43
98 S420
99 C230K
01 C240