Originally Posted by
James73
I run OS plugs in my Picco/Sonic engine. Thing is once you put one in you must stick with OS plugs.
That's a nice myth you've got there. I bet that helps OS sell a lot of glowplugs.
You can change the brand of glowplug any time you want, you just have to re-tune the engine afterwards. Same as if you change any other part of the engine.