I posted recently about my ofna ls2... Was looking to get spare glow plugs as I only have the one that's in the car now. I looked on different sites and had no clue where to start. I seen #8 plugs, turbo plugs, hot, medium ext. Can someone reccomend what's good to use what all that means and why? Especially with long and short plugs I'm afraid to get a longer plug then what I have now and have the piston hit it and hurt the motor!