Owner Operator CNG truck

I was told by a mechanics wife that is the Cummins tech at Freightliner that they go through a lot of heads. At least I think thats what she said.

 

Waste Management runs them and they are always at the dealership needing repairs. I’d like to talk to a WM mechanic to get their view.

 

Fuel is cheaper but uses twice as much apparently. Shorter range as well

 

Doesn't it drop the torque a bunch, too?

 

When I was doing heavy towing I towed a ton of Frito Lay Volvos than were CNC. They were always having issues.

 

Back in the 1990s the company I was with hauled a lot of stuff for Cummins' mid-engine program. That was their 5.9L and 8.3L inline six cylinder engines as well as the associated 4 cylinder blocks with the same bore/stroke as the B6 and C6 blocks. We'd haul everything from rough castings, screws, bolts, pistons, crowns, heat exchangers, turbos, etc., heat treated parts, machined parts, coated parts to the finished engines going to Chrysler, Onan, Case, Freightliner (A lot of FL bus chassis had the 8.3L), RV manufacturers, etc.

There were LNG and CNG versions of all of those engines. The only basic difference were the heads. They had spark plugs, different compression ratios, and different valves. Most of them wound up out in the desert SW as stationary irrigation pump prime movers fed by natural gas lines.

 

That natrual gas stuff scares me I try not to mess with it

 

If you’re in an area where you can fill it maybe it’s worth a try. Around here you better be able to go a long way on a fill…I can’t even think of a place but maybe that’s because I don’t look. I have no idea at all about the reliability or any other concerns with it