I was at the dealership today and was looking around the parts department. A 3 gal coolant bottle cost around $21. I was thinking of doing a coolant flush before the winter, any advice of which coolant I should use. You can find other coolant brand at local shop for cheaper price.

About the motor oil, I was think of using Mobil 1 Synthetic. That is the best there is, or should I use the Honda oil?

 

Welcome to the forum
This topic is discussed many times- the search button is your friend
Honda coolant is good
other brands- as long as premix 50/50 or you mix with clean water to make 50/50

Mobil1 FULLY Synthetic High Mileage is the old formula Mobil1
read bottle carefully

 

Stick with the honda coolant.

Most prefer M1 oil