after a good amout of research i decided to use these for my hip 4.6 engine and they do make a difference - i had to adjust the HSN but it runs smoother and they last far longer then medium hot plugs for this size engine.
Posted on 22nd Jul
Very dissapointing glow plug. I only ran it once in my car with 1 tank of fuel and then the bottom element died!! Glad it was on offer!
Posted on 10th Aug
Have been using OS no8's in the past and this glow plug has good potential after 15 races its still going strong