[quote="rapidcossie"]costina, that makes sense but I have my oil presse sensor at the the other end of that line on my car with no troubles.

euan does your gauge have a tube to it?? just thinking the gauge is too near the t piece

My cos has done 108 k on std bottom end 60 psi cold 30 psi hot using 15/50 mobil 50 psi while driving