i still preheat the block on my B5's even after being fully broken in(for just a bit with the piston at BDC). makes life easier on all the moving components and takes no time....easier on the box/wheel as well). anyway....i've got many gallons thru all my B5's(in an 8T 2.0, as well) with no issues. the B5 is a fantastic engine.......just remember to drag the piston to BDC every time you stop the engine for awhile..........and, i use ARO when it sits, as well.......all good/cheap insurance..............try the DYNAMITE LIPO glow starter, as well........packs a punch to the plug.