Yes, it currently has 160,00 miles. I have run the 2 stroke oil in every single tank except for 2 since about 115,000 miles. I skipped the two tanks on purpose just to prove to myself that it was working and not just in my head and it definitely works. The clatter the VQ40 is known for during a cold start is almost non existent now which is the big indicator to me that something good is happening for sure.
Hey, if it works - it works!
Trying to learn here:
How much 2-stroke oil do 'you' add to a full tank of fuel? Guessing you're not going for a 50:1 or even 100:1 ratio? That would cost some buck$ for sure w/ every tank.
Probably a stretch, but is your rise in fuel economy make this cost effective?
Do marine engines run catalytic converters?
As to this cold start clatter, part of me thinks this is some kind of a luck of the draw. Yep, VQ40s certainly roar to life in an embarrassing way...but whether I lucked out or not, I can't say I've ever heard what I'd describe as clatter. I had instructed the dealership to allow me to cold start my factory ordered '15 SV since I felt armed with intel learned around here prior to my purchase order. That initial cold start sounded uneventful enough that I felt I had escaped anything inherent clatter-wise. It has sounded the same ever since (yeah, loud), though really cold Winter days when parked outside add some extra noise for sure. My truck is mostly garaged, so there is that.
