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Old 07-16-2019, 10:23 AM   #1
New Member
Join Date: Feb 2019
Location: Texas Hill Country
Posts: 7
Gas engines

Is anyone running a gas engine bus
Are they decent ?
Or is the Diesel engine preferred ?

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Old 07-16-2019, 10:32 AM   #2
Bus Nut
farok's Avatar
Join Date: Jan 2019
Posts: 375
Year: 2003
Chassis: Chevy cut-away 6-window shortie
Engine: 6.0L Gasser
There are a number of arguments on either side of this fence.

- cheaper parts, oil changes, etc.
- less noise
- any repair shop should be able to work on it

- more efficient (MPG)
- more robust (lasts longer, less powertrain work required, in theory)
- more torque / pulling power

I'm sure there are others. Anyway, for our weekend warrior short bus, I chose gas, and it's fine so far (still mid-conversion), but it was also relatively low-mileage and in great mechanical shape when I got it.

Most people tend to lean towards the diesels, especially in the big buses.

My build thread:
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Old 07-16-2019, 11:31 AM   #3
Bus Nut
Join Date: Aug 2018
Location: Philadelpiha Pennsylvania
Posts: 397
Year: 2007
Coachwork: IC
Chassis: FE Bus
Engine: DT-466 7.6L Turbo Diesel
Rated Cap: 77
After schooling my self on diesel engines and working on my dt466e extensively, I think diesel is way easier to work on and although they take things like 7 gallons of oil and 14 gallons of coolant, they are fairly inexpensive to maintenance. I would now gladly take and work on a diesel over a gas engine any day.
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Old 07-16-2019, 11:42 AM   #4
Bus Crazy
Join Date: Jun 2013
Location: Picton,Ont, Can.
Posts: 1,956
Year: 1997
Coachwork: Bluebird
Chassis: GMC
Engine: Cat 3116
Rated Cap: 72
Originally Posted by RandyLee View Post
Is anyone running a gas engine bus
Are they decent ?
Or is the Diesel engine preferred ?

Wondering what your intended use is? Both require operational knowledge to a point. Both require upkeep, continual time investment as well as some cash.

I could see buying a gasser for some situations but not all and that is where you have to decide which would be better.

Go drive some of both and get a feel for them.

Question everything!
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Old 07-16-2019, 05:17 PM   #5
Bus Crazy
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Join Date: Oct 2017
Location: Virginia
Posts: 2,333
Year: 1971
Coachwork: Wayne
Chassis: International Loadstar 1700
Engine: 345 international V-8
Generally diesel is preferred for the full size buses. Also generally speaking full size buses have not had gas engines for some time, although there are now new ones with gas engines. So in a full size it is likely to be an antique if it has a gas engine. So that is another can of worms so to speak...

Short buses like van cutaways it is a toss up, drive both and see what you like.
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