Gas engines - what makes them different from diesel and petrol?

What makes the difference between petrol, diesel, and gas fuelled engines? It's mainly down to the combustion characteristics of the fuels - gas burns hotter, and therefore requires more oxidation stability. It also requires unique storage solutions, which is why gas engines have seen most widespread adoption in power generation and gas compression applications, where gas is readily available. Small LPG-based cars are also becoming more popular, particularly among taxi fleets, and these operate on the same principle.
Become a lubrication expert: lubrication.expert
Hi I’m Rafe Britton, the Lubrication Expert. I’m known within the industry for my RUclips channel and podcast, and I work with mid-size industrials improve their equipment uptime while reducing the cost of their lubrication program. I’m a mechanical engineer with 13 years of experience on both sides of the industry; both as an operator, and lubricant supplier. I hold a Bachelor of Aerospace Engineering and a Bachelor of Physics from UNSW.
Lubrication Expert is purposefully brand independent and sells no lubricant, filter, sensor or hardware. I’ve helped dozens of industrial clients upskill their workforce, reduce waste, improve reliability and take great strides toward their corporate sustainability goals. I serve on the Australian Lubricant Association technical committee to push the lubrication industry forward.
Industry doesn’t understand lubrication, and few people are left to teach them. This results in incorrect use of lubricants, contamination & machine failure, leaving reliability engineers frustrated with the state of their lubrication program. The ultimate consequence is more machine interventions, more waste, and more equipment downtime
What I offer is knowledge, and only knowledge. My clients gain access to my learnings both as an operator and industry insider - this includes the technical aspects of lubricant chemistry, degradation and contamination control, but also the commercial considerations so that you can better leverage your supplier relationships.
The result? A world-class lubrication program that optimizes for reliability, reduces waste and improves sustainability outcomes.

[@LubricationExplained]

Looking for more structured lubrication courses? Join LE Pro for $30AUD per month (that's about 20USD).

[@navaneethakrishnans1299]

Excellent sir. Great and exhaustive work of yours is driving me to all your episodes no words from me to thank you as they are nothing to the values, I feel.

[@jediali221]

thanks for sharing. Interesting to note that engine lube oils designed for 'gas' engines tend to be more tolerant of the gas contaminants that could lead to poor TBN or corrosion.

[@qaisibrahim5674]

Thanks for the informative video

[@VHP7044]

Lean burn is more efficient.

[@edogsx]

it would be interesting to make a video about the characteristics of motorcycle lubricants, especially what the presence of the wet clutch entails and the jaso MA MA2 specifications.

[@tomasnokechtesledger1786]

Great video, Mr. LE! I wonder how much soot a 15w40 semusyn Diesel engine Lube can handle vs. a common semisyn 15w40 Gasoline Lube ?

[@canto5858]

Hey, I made a synthetic lubricant but want to make it thicker, right now its probably close to 140W but I want it closer to 240W. What should I add?

[@jamesmcallister458]

Thanks Rafe, this is a very clear and understandable explanation. Really appreciated.

[@Andersljungberg]

Are you talking about CNG So natural gas or biogas

[@Andersljungberg]

You can apparently convert a diesel engine so that it can run on gas

[@ultimoarrivato6134]

Per inferiori

[@otm646]

You need to modify the title of this video with lpg/cng in parentheses. It is not plainly obvious for the first quarter of your video that you do not mean gasoline to the majority of the native English speaking world.

[@Unknown-jl7mg]

endless debate that lpg destroys engines...