Converting a diesel engine to use LPG is different from a petrol engine conversion. Since the diesel engine has no spark plugs, the only way the LPG can burn is if diesel is used to ignite it. So diesel is always used. The addition of LPG gives a more complete burn of the diesel and can result in a reduction in the amount of black smoke emitted from the exhaust. More significantly, it increases the power from the engine. The way the extra power is used has a direct influence on the fuel economy.

If you drive at the same pace as you do when running on diesel alone, the addition of LPG will allow you to use a smaller throttle opening. This means that the load on the engine is the same, but the amount of diesel used will be less. Many of our customers report savings of 20 to 30% in fuel bills. The older, mechanical injection engines tend to give greater savings than the newer, more efficient, electronic injection engines.

If you decide to use the extra power, the load on the engine will be higher and, at large throttle openings, the engine will burn the normal amount of diesel in addition to the LPG. Thus, your fuel bill may well be higher than when using diesel alone.

Given the above, it is difficult to predict how the use of LPG will affect fuel bills in the context of the diesel engine.

The Tinley Tech diesel LPG conversion kit is intended for use by owner-drivers rather than commercial users, where drivers tend to drive hard.

Care must be taken to avoid feeding in too much LPG as ADDING TOO MUCH LPG MAY DAMAGE THE ENGINE. Tinley Tech cannot be held responsible for damage caused by incorrect tuning.