Outboard Oil -

Dora~Jean":ld86yupw said:
I cross-referenced my '03 Yamaha 80 filter at Kragen. I use Fram's highest quality equivalent to model PH6017A (Yamaha 3FV-13440-10). I change the filter with every oil change. Another equiv is 5GH-13440, don't know mfr.

I just found the K&N KN-303 is also a Yamaha 3FV-13440-10 filter equivalent. Fits Yamaha outboards, motorcycles, and a bunch of other stuff. Dunno how it rates compared to Fram or genuine Yamaha, but I do intend to find out.

Don
 
Patrick (Cosmic C) - you certainly know your oils. This is not meant to start an argument with you and I would not dispute any thing you say, but while I have not had the formal education in oils you have, I base my opinions on my experiences.

My last engine failure was in 1974 on a 1972 International Scout. That was the year I started using DELO400. The Scout had 33,000 miles on it and it had a bad clicking noise in the engine. The dealer told me I needed an engine rebuild and it was 3,000 miles over the warranty. A old oil man suggested I use DELO400 in it and drive it until it quits. 110,000 miles later it was still going when I sold it.

My vehicles are run hard and put away wet. I do not baby them. The last vehicle I sold was a 1992 Jeep Cherokee 4 L. I towed a flatbed trailer loaded with lumber weighing 6500 lbs from Olympia to South central Washington several times a month. The Jeep spent a quarter of those miles on rough logging roads. I changed the oil in it, between 7 and 10,000 miles.

As I stated in an earlier post, 300,000+ miles is not uncommon for me to put on a vehicle before selling it. I consider it just broke in at 150,000 miles.

When Mobil 1 or some other kind of oil will give me better service than that, I will think about using it.
 
As outboards don't have catalytic converters (yet) to plug up, at least one oil company, Amsoil, puts extra zinc and phorsphorus in its outboard oil for added wear resistance.
Dunno if the diesel oils have this enhanced additive package.
 
Aftermarket oil filters will void your engine warranty .Its not worth it . Almost every 4 stroke catastrophic failure we have seen has had an aftermarket filter on it . Its kind of coincidental cause my service manager and I were speking about it this morning . Marine engines also run cooler than automotive engines which is why the have marine specs for oil .
Marc
 
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