I have been using amsoil 10 w 40 synthetic for both of my bikes 1989 and a 1995, Its now getting very expensive to change oil. My question is could there be any complications if I were to switch to a less expensive oil synthetic or regular. Or should I bite the bullet and keep using the amsoil., I have had no issues using amsoil I just want to know if there is a down side to switching.
!995 1989 VN750 Both bikes have identical accessories. Rear facing cameras with windshield mounted color monitors. Hard saddle bags. Tire pressure monitors. All recommended mods. Removable rear trunks with alarms. Ground facing LED Kawasaki logo illuminate with brake lights .