The type of coolant that goes into a Honda Shadow 750 Spirit is Prestone Pre-Mixed 50/50. Do not use regular anti freeze.
I would use the Honda pre-mix.
Any antifreeze that will not hurt aluminum.
It really is best to get the pre-mix from your Honda dealer. Can't go wrong with this.
Basically you just need distilled water unless there is frost where you live, then you must use anti-freeze. You can also buy coolant with a higher boiling point at the local Honda dealer's or from other suppliers.
I recommend you go to your local Honda dealer and purchase Honda Long Life coolant.
No, you must use the correct Honda Long Life Coolant Type 2 or a comparable fluid.
10w40
2006
An 87 Honda Shadow is a cruiser-type motorcycle made by Honda since 1983. It has an oil capacity of 3.3 quarts.
10w40 will be fine.
Your 1993 Honda Accord can use any SAE certified coolant. The coolant should have a temperature range of -25 degrees Fahrenheit to 120 degrees Fahrenheit.