motor oil

[curt]

I own a 99 115hp evinrude ficht,my buddy is selling his boat and said i could have his extra 5 gallons of Yamalube. Is it ok to burn diff than manufact. brand? thanks in advance!

[Tom P]

Yes, Bass & Walleye magazine did an oil test on conventional petrolium 2 stroke oils. Yamaha had about 4 extra anti-wear additives then any of the other oils. If I were not running 100% synthetic oil, I would hands down be running Yamalube oil.

[seahorse]

I reread the B&WB oil story and it says that Yamaha uses more metallic additives (along with Merc) while all the other companies use organic compounds. There was no statement that one was better than the other, except that Yamaha had phosphoruous which is hazardous to their O2 sensors.

Yamaha oil will work OK in a FICHT, but the FICHT Ram oil is the best to use if you can get it.

[Tom P]

Seahourse, Phosphoruous is not hazardous in small quanities. They stated that in the article too. That's why they still use it. Isn't Yamaha the only one using O2 sensers? In a preveous post you had this thing about metallic based anti-wear compounds. Graphite sure works great as a lubricant in some cases. Molubdium acts like micro tiny ball bearings that ride between two surfaces. Metallic additives work great and that is why Yamaha uses them. You must only eat organic based foods. Yamaha has one of the best track records in this business. They are known to test, test, and retest. They don't let things come to market that don't work. Merc. and OMC have a track record of bringing things to market that are only "so so" tested. I myself would think 4 extra anti-wear additives would put an oil to the front of the pack or to " best statis." They just can't say that because " who" pays the bills at that magazine? Lot's of Merc. and OMC money I would think. I would also use Yamaha's exellent track record on testing and more testing and bringing only the best they can do to market place as another factor. With these facts I myself would go out on a limb and would state that Yamaha has the best oil by a small margin.

[seahorse]

Ever read a Yamaha owners manual for an EFI that says never to use an oil that contains phosphorous? Even though their oil only has a small amount, according to them, it is the only oil tested that had any.

Yamaha makes good products, but they have their problems just like any other outboard company. It is almost religious fanaticism that some folks have about how good they are. How come no one is *****ing about the surging problems with the HPDI's? Hasn't anyone talked about the recall on 115 4-stroke oil pumps? What about the steel screws in the fuel pump that would rust, then the residue would restrict the inlet valve and cause that cylinder to run lean and scorch a piston? How many people talk about having their V4's rebuilt because the wrist pins hammered loose? What about the folks fouling plugs with the early HPDI's? Don't forget the fuel leak recall on the fuel management systems for so many years.

This is not a tirade against Yamaha, but to show they are no different than any others. How many of the common problems listed did you know about?

[Tom P]

The phosphorous issue is a total non factor. Who would ever know if your oil would have phosphorous in it. Even though they are the only ones that put it in at small amounts, That tells me it is important enough to have in, that they tested the heck out of it to get it to a minimum level so it would not affect the sensors. The others would just say " the heck with it, let's forget it, why bother. You would see more Yamaha bashing if it happened to more people on a regular basis. I was not on this board before DFIs, so I do not know the feeling of brands before OMC and Merc.had their problems. Even if it is only DFI prblems that can stain the name. Are you in the marine biz? or do you just have a good memory?? With all the problems that Yamaha has had. You didn't answer my ?? about if you eat organic foods?? :)