Haven't used my xFire much this summer but loved every minute that I did. Rode my Goldwing 19.0000 miles and that doesn't leave much time for the xFire. BUT I HAVE IT

Wondering if anyone uses Amsoil in there cars. It meets all of the requirements and then some. Also, if ones only put a couple thousand miles on the car and it is a heated garage all winter how often should the oil be changed?
Thanks for the answers in advance
Great Grandma in upstate NY