I like green, yellow red and black colors maybe some silver or grey..  as for the style I like the example pic as a style.. 

Danner diesel repair 740 538 9576
Would like to incorporate a turbo, piston/rods, a gear of some kind and maybe a fuel injector.. 

my name and phone number “on or off site repairs” maybe even have the turbo blowing smoke out of it..

maybe you can incorporate a pic or partial pic of my service rig in it... if it’s not too many items in a logo it’s Not needed however

GREAT JOB!  Took my ideas and made it better!  Fast work and replies to messages / question's.

Danner Diesel