this is just my opinion but i would say, as long as you give it time to warm up slowly and cool down before shut off then you should be fine.
just as long as you dont go beat on it and then shut it right off you should be good to go.
cold weather sucks
everyone does at some point, you should be good to go with proper warm up and cool down time
Car engine are tough. Lot of cars nowday come stock from the factory with Alumn heads etc. 20'F is really not that cold. Just drive slowly until the oil warm up ( Collant heat up faster then motor oil ).
I have Alumn heads on all the Mustang I ever owned since 93 and they held up fine.
I do open the hood every chance I get after driving to let the under hood heat out faster. Summer or Winter.
I have Alumn heads on all the Mustang I ever owned since 93 and they held up fine.
I do open the hood every chance I get after driving to let the under hood heat out faster. Summer or Winter.