I too have been running Dynamite platnum .28 engines in one of my truggies for 3 years now.. I have 2 seasons on the one now and never opened up.. very reliable engine.. I also have a RB c6 in my other truggy and a GRP .21 in my MT.axial .12s in our sprint cars and they've all been good engines.. so I'm not just picking one brand to bash the others.. the platinum is the engine I'll probably run more often than the others tho.. I see A-main has them on sale for $160.00 now..