Well my garage queen/track ho just went 18 months without an oil change. It had Mobil 1 10W-30 in it. I changed it yesterday with the same oil and a new Honda filter. Only 5K mi. in 18 months. Now it's my daily driver.

Anyone more than 18 mo?

K

 

Probably no harm done since you don't drive it but if your going to go with a long interval, follow the SM rec of one year max.

 

damn 18 months...thats long!

 

Me, one year if it needs it or not! 2005 with 11,000 miles.