we bought two of the r195 changfa's, set one up and tried different fuels,
diesel,,, runs perfect
ATF.. starts and runs same as diesel
hydraulic oil... starts and runs same as diesel
vegie oil... starts and runs same as diesel
10 weight engine oil... starts and runs as diesel
20 weight a bit slow to start, some smoke but soon clears, runs fine
30 weight ,, hard to start,,, smokes for about 30 seconds, but clears and runs fine.
havent tried waste vegie oil yet, but would be it will run on it just fine.
bob g