LPG. Missfiring, rough idle and rough running.

[dom14]

I was under the impression that since LPG is a dry fuel, there is no additive which will coat the valve and seat so they will suffer abnormal wear.

Yet another mechanic I talked with, dislikes the valve lube systems as in his experience they 'gum up the works'.

I've heard some guys who know a bit about LPG vehicles saying the upper cylinder lube is a bit of a scam.(not my words).