[DeaconRed]

Natural Gas burns so clean your oil doesn’t need changing.

[thackney]

your oil doesn’t need changing.

I don't recommend that idea. Your oil is going to still need changing. It may be cleaner, but it is still breaking down due to the heat.

[cunning_fish]

>>Natural Gas burns so clean your oil doesn’t need changing.<<

In fact one in two commercial vehicles in Russia is natgas-powered since earlier 1980s, many larger guzzling family vehicles too. They are still changing oil, thus not so often, but plugs are surely eternal.