Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

That’s the tricky part. I’m not exactly sure how they’d go about it. A drip oiler with very light oil such as marvel into the intake ought to work, but I’ve not done it.
I was intrigued by the video of the engine show. Several men sitting around as their many engines were running indoors, the butane cans attached through a stove control valve to ordinary fuel tubing.  As with forklifts used in warehouses, gas instead of petrol is far less harmful. No worse to breathe perhaps from a small hit and miss as well have,  than the pilot light on a kitchen gas stove.