Recently, I got a coolant flush from a local volvo shop called VolvoTek (now VTeK). I had to return because of low coolant warning. The owner assured me it was from a air bubble in the system from when they vaccumed out the coolant. He filled it to capacity it works fine now (no error messages). The one thing that I notice now is that my gas mileage is terrible. Are these things connected or jus coincidence?

 

I'm guessing that these things are not related jus coincidence?

 

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