just thought i would post re blending waste oil in with diesel
we recently purchased a one ton ford, 87 model with the old 7.3 mechanical engine (diesel)
it came with dual tanks so it made for a good test dummy
my partner mixed 15/40 waste oil at 60/40 (60% waste oil), it was triple filtered and filled the rear tank.
the truck now is started off the front tank and pure diesel, run to temp and switched over while running, switched back over to purge the system making for easier and cleaner starts.
results:
a. no more smoke than usual
b. a smoother running engine, likely from slower burn rate of the oil/diesel fuel
c. more power, but unable to document how much more at this time, it just pulls a bit harder
d. mileage increased from 12 mpg to just over 24 mpg!
i wouldnt suggest this thick of a mix, for one of the new direct injection engines or electronic injection, but it does seem to work on this old 7.3l ford
in our business, converting waste oil to 3 dollar plus fuel source is very significant to our bottom line. besides we generate a couple hundred gallons per month.
bob g