I have 1 qt of Rislone in the oil to quiet lifter noise, does it make any
different in oil consumption. There is no oil leak, and I use 20/50 Mobil oil and
Mahle filter. The gas consumption over the 650 mls long trip over the long
weekend was about 19.5 ml/gal of regular unleaded gas with A/C on (halfway) most
of the time, cruising mostly between 65-70, never exceed 4000 rpm. I did not
feel any significant lost of power during the entire trip.