i have two vehicles a 2005 grandam & 2008 chevy cobalt both have some...

[Christine J]

...antifreeze in them . will they be ok .? till morning when i can get some dexcool the required antifreeze for these cars, the temp is suppose to be dropping into the 20's? i have some antifreeze but it is prestone and i do not want to add it being the manuals say add only dexcool or it could mess up the car.

 

[renegade]

I have never heard of prestone messing up an engine... I know they are not supposed to be mixed (second website)... They should be good till morning... They may have trouble starting, due to the cold, but most cars do.

Good luck

 

[whatTHEheck]

The Prestone is good for all makes and models. You would have a problem if it were the older antifreeze formula, but it should be fine with the all makes and models stuff. The color will just look funny. You may want to look into a flush if you want to have only dexcool though.

 

[Kyle E]

you will be fine

 

[I Always Rock 2 The Beat]

Duh aslong as you don't let them date hybrid cars they'll live happy