OK, confession time. For the past month I have been on pins and needles and depressed about oil. The new W was burning through a quart of oil every hour of running at around 2300 RPM. Now. I blamed myself. Was there something I did wrong while breaking it in, did fuel get into the oil and cause the cylinders to polish? Was there a broken ring. Hey, stuff happens. Now. I had not had any issues or even noticed the oil pressure before. It was all fine. Ran perfectly, But man oh man-o-shevitz, a Qt an hour and burning like a pig. The smell was horrible. SO.. What was it. I built up the courage to call Dave Van Ness and admit my failure to take care of his engine. I had changed the oil like a good boy, to 30 wt Non Detergent oil from Napa, the only stuff available here in non detergent. The owner manual says to do that. Everyone says to do that. Except the engine plate says 40 wt! mmmm Are “W”s says it, the “H” says 40 wt.
All Oils are not alike. When I said I used Napa to Dave, he said. “Oh.. Use Rotilla 30 or 40 wgt.” Rotilla is a Shell product designed for Diesel Engines BTW. But also is used on older engines. Yup, read around. The older car guys swear on it, not at it.
And so, we did just that we changed the oil. I couldn’t wait. My nerves were at the end, and how could a simple change of oil brand make such a difference. To be honest, even Dave was curious. Sure it might make a little difference. But 1 qt an hour is a dramatic amount.
Well Slap My Ass and Call Me Shirley. NO SMELL, NO BURN, I am Shocked. SHOCKED I tell ya. I don’t know why, or the chemistry behind it all. But its like the day we started it this spring. With the Rotilla that Dave put in it in the first place. Night and Day, Black and White, it could not be more dramatic.
So if you are having excessive blow back. ( A cooked oil smell in the cockpit ) maybe, just maybe its the brand of oil. Try this before you spend a fortune on more dramatic things. A Huge thanks to Dave, again, and again for sharing some of his wisdom on the matter.
Now back to sexy shots of oil cans. Cause no one wants to look at Napa plastic bottles.