Here’s one for you lovely lot. 

 

Has any one managed to convert the diesel to run on lpg at all ?

ive got the 2 litre diesel 

1 hour ago, Stuart-h said:

Here’s one for you lovely lot. 

 

Has any one managed to convert the diesel to run on lpg at all ?

ive got the 2 litre diesel 

 

Convert a diesel to run on Liquid PETROLEUM gas??

OP Posted 4 hours early obviously!

You can use LPG to boost a diesel that runs diesel as some offroaders do, but never heard of Converting a diesel to run on LPG without diesel.

I had 2 V8's that ran on LPG only & had no petrol tank for starting or running.

http://v8engines.com 

It's very difficult to convert a modern compression ignition (diesel) to spark ignition (lpg) due to the fundamental differences

 

EG diesels run on full air throttle but control the speed/power by injecting more/less fuel

Petrol/LPG control the speed with a throttle/air flap

Petrol/LPG need a spark plug for ignition

There are some mixing installations:-http://www.autogaspol.co.uk/news-lpg-for-diesel/

 

However for Petrol cars LPG is seriously being considered elsewhere eg France :-

 

http://gazeo.com/up-to-date/news/2018/France-pays-for-autogas-conversions,news,10066.html

 

It is very popular in Holland and has been for years

 

The Prins direct injection systems look interesting, pumping liquid gas straight into the direct injectors. This does not require the evaporation systems of old and can use many of the existing pumps and control systems.  It's also supposed to minimise the carboning up of valves due to "latent heat of evaporation" and not have the valve recession of old.

https://www.prinsautogas.com/en/products/directliquimax_system/directliquimax_system.html

http://www.autogaspol.co.uk/prins-2/

Other countries do this well!

 

We seem to be going the other way and LPG filling stations are vanishing.  Back in the early 2000's the goverment said it wasn't the way to go so discouraged through the tax system - instead they said diesel was the way to go - How times change!!!

 

I did consider it for my 1.4tsi to financially mitigate the move away from diesel to petrol (at the time I paid many thousands less for the petrol)  However in reality the mpg of my Superb has been much better than I ever expected anyway.  On the same style of driving on my journey types (mostly 32 miles each way every two days - much of the journey in slowish traffic) my old 2003 Superb I 1.9 pd did about 50 mpg and my 2014 Superb II 1.4tsi does just under 46mpg. I though this was going to be much worse  

 

To be honest my journey type probably would best suit something like a Toyota hybrid but because of the deal I got at the time it would have taken 20years to pay back the extra capital used with theoretical fuel savings.  I also fit better in the Superb (hence bigjohn) and to me most of the Toyota hybrids are - er ugly 

 

 

Edited 31 March, 20188 yr by bigjohn