I was going to go into the whole "it seems to smoke less with higher viscosity oil in there" but didnt for risk of making my rant even longer..The heavier oil seems to cut down on engine noise as well. Not including I just dont like the feel and makeup of the 10-30w. Did you ever dip your finger in 20-50w and then dip it in 10-30 and rub them both between your fingers? Man, What a diff. I still find it hard to believe 10-30w is recommended. It's texture is consistent with water to me. I feel much more secure with the thicker weight in there. :P
****472 RWHP/461 TORQUE ON 110 RACE GAS @21 PSI ****438 RWHP ON 93 OCTANE PUMP GAS/STOCK MOTOR**** ****429 FT LBS/TQ*******************************