Just regular gas.
10w 40
I had an 1986 Honda shadow VT1100 (loved it) and I ran mid grade with no problems. You can run 87 octane with no problems.
Regular unleaded 87 octane.
SAE 10w30 full synthetic.
Just buy it from your local Honda dealer. Just buy it from your local Honda dealer.
10w40
I just run 10w 30 in mine
A TRX 70 takes 5W-30 oil for temperatures between 15 degrees and 95 degrees, so it should work fine.
H3 you can get one from your local auto parts store
R134a
r12
Honda Premium Formula or Dextron II