Recent content by Pas_Bon

Well I changed the oil (Delo® 400 XLE Synblend SAE 10W-30) and filter (Fram 7317) on the 115, Cost me $20 as opposed to the $50 with a Yamaha filter and Yamalube. Motor ran great, nice and quiet, did not explode!

I ran my 25 yesterday and it didn't explode...I think I'm good!

I think he is referring to leaving "old" oil in the crankcase over winter as opposed to doing the maintenance in the fall and have the "new" oil sit in the crank case over the winter. Not the first time I have heard this. As for the Zn and P it has to do with pre-detonation I think, which I...

Originally Posted By: claluja OP: Two of the points I take from that writeup, which likely still apply, are (1) don't leave used car/truck oil in a marine gas motor while it is laid up with the boat over the winter, and (2) HDEOs with high Zn and high P not necessarily good for boat gas motors...

Originally Posted By: claluja Should be ok if you're changing oil annually and not putting too many hours on her. Go for it. Note: Assuming you've seen on here that the Yamalube formulation is different than vehicle oils (e.g., yamalube syn has very high molybdenum, plus others) Good read...

Thank you all! Dusty, It is a CK-4

Hello all, Long time lurker here. I have read ad nauseum more threads about this than I care to reveal....so here goes anyway I have a 2002 Yamaha F115 (4stroker) It only has about 250 hours and I dump out perfectly good Yamalube every year, well it's like $30 a gallon now so... After...