We are new to HHRs in cooler weather. Our first experience was a rental that we drove over 1K miles 3 or 4 years ago in Arizona. This summer bought a used LS. Fine vehicle!!

We are not only new to HHR ownership but also to 4 cylinder autos. The temp gauge moves in about one city block of driving and the heater gives warm air soon after. How do they do that??? Do all 4 cylinder autos warm up the heater core as fast?

In any case a special feature for Michigan winters...

 

Most new cars the engine heats fast to reduce the emission when they are cool. The MFG's try to get heat into the engine and converters as fast as they can to reduce the poor emissions a cold engine gives off.

My Turbo SS is the fastest warming engine I have ever owned.

 

To say nothing about the very low amount of liquid coolant that is used in all the new cars.

 

I've used my heater before. I know it is somewhere by the Air conditioning controls...I think......Welcome to the sight

 

On the other side of weather spectrum, I've been impressed by how stable engine temps remain, when the outside temps are well over 100 degrees. We have had a very warm summer, overheating engine was never even a slight issue.

 

I know years ago GM reversed the coolant flow on their V8's. My '02 Avalanche would heat up like that, whereas the 99 Dakota R/T would take forever to heat up. I would suspect they adopted the practice on all of their engines