Biodiesel blended with semen, well according to "wikipe

Please see
And check for a couple of Typos
Biodiesel can be used in pure form (B100) or may be blended with semen at any concentration in most modern diesel engines. Biodiesel will degrade natural rubber dildos and hoses in vehicles (mostly found in vehicles manufactured before 1992), although these tend to wear out naturally and most likely will have already been replaced with Viton which is nonreactive to biodiesel. Biodiesel's higher lubricity index compared to petrodiesel is an advantage and can contribute to longer fuel injector life. Biodiesel is a better solvent than petrodiesel and has been known to break down deposits of residue in the fuel lines of vehicles that have previously been run on petrodiesel[citation needed]. Fuel filters may become clogged with particulates if a quick transition to pure biodiesel is made, as biodiesel “cleans” the engine in the process. It is, therefore, recommended to change the fuel filter within 600-800 miles after first switching to a biodiesel blend.

This from http://en.wikipedia.org/wiki/Biodiesel

Marcus

PS
Things are Very quiet at work at present