This question was related with this What is the difference between normal, platinum, iridium plugs? Is there any difference if petrol vehicle is converted to liquid propane gas (LPG)? In my case I have Volvo with engine B5254T
The B5254T is turbocharged with a low pressure turbo (LPT) producing a maximum of 6 psi (41 kPa). Output is 190 hp (142 kW; 193 PS) at 5100 rpm with 199 lb·ft (270 N·m) of torque at 1800 rpm
Owner manual recommend platinum plugs. But how about when engine operates with LPG? NGK website says this:
There are two critical factors that need to be understood when converting a vehicle from petrol to LPG:
- LPG burns hotter
- LPG increases the voltage requirement at the electrode gap In an attempt to correct these two factors, as a general rule we suggest to:
Use a spark plug that is one heat range colder than standard to compensate for the increased heat from LPG:
The temperature profile of an engine may vary between vehicles. As such, the effect of LPG on the operating temperature of one vehicle may not be the same for another vehicle.
Can I use basic copper plugs and change it at shorter interval? And how about performance? Can it decrease if I am using copper plugs? And if I am using copper plugs, does it hurt to engine? At this moment I have NGK LPG LaserLine plugs
Or can I just use platinum plugs (OEM or equivalent) if engine is operating with LPG?