P38A Thor engine Spark plugs

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TallPaulB

Active Member
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146
Location
Manchester, UK
Hi All,

I used an NGK part finder online and it recommended the BPR5EIX for the thor engine on LPG, but then a different part finder recommended the BPR6EIX.

What's the difference between those two? I ordered the 5s before I spotted the other part finder, will the work okay or should I return them and get the 6s?

(I'm sure someone will point out the fancy iridium plugs aren't worth it, but I'm happy paying the extra for them :) )
 
Looking at their site NGK also do a plug specifically for LPG/CNG.
"LPG LaserLine spark plugs are dual precious metal spark plugs specifically developed for gas-fuelled engines. The combustion of gas is different from the combustion of petrol and, therefore, requires spark plugs which are specially adapted to these conditions. The gas-air mixtures are more difficult to ignite, as more ignition voltage is required and the risk of failure of the ignition coils increases. NGK LaserLine spark plugs come with a lifetime of 60,000 km, clearly outperforming “normal” spark plugs"
https://www.ngkntk.com/uk/products/spark-plugs/

Bit more here; https://www.ngkpartfinder.co.uk/files/LPG_info.pdf

FWIW I've run my dualfuel 3.5EFi RRC mainly on gas for around 20 years on the BPR6E plugs recommended for petrol & not had any issues.
The other plugs listed for mine are the BPR6EIX and LPG2. The latter on ebay at silly money.
 
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