Mobil one Full synthetic lower gear lube

[crazy charlie]

I prefer to use a full synthetic gear lube in my 1995 Evinrude Ocean Pro.I cant seem to find anything except a synthetic blend in my area.I know Bondo uses the Mobil one in his i/o gearcase but does anyone know if it is fine for an o/b ??

 

[studlymandingo]

Re: Mobil one Full synthetic lower gear lube

Should be fine. I know LubeDude will recommend some Amsoil, and they have some cross-reference charts.

 

[imported_bjs]

Re: Mobil one Full synthetic lower gear lube

 

[Texasmark]

Re: Mobil one Full synthetic lower gear lube

Wally world handles a pretty good line of Pennzoil marine products. I have purchased full syn 2 cycle oil and full syn lower unit oil.

Mark

 

[OBJ]

Re: Mobil one Full synthetic lower gear lube

My P&A book says Mobile 1 is not recommended for outboards. Not sure why. Says in there that it's recommended for the OMC/Volvo Penta SX outdrive. Hmmmmmm.....I'll do a little research on that one. We don't sell a lot of it so I really can't put in any more input than that.

 

[LubeDude]

Re: Mobil one Full synthetic lower gear lube

"amsoil is junk i wouldnt use if was free."

And you say this because???????????

 

[walleyehed]

Re: Mobil one Full synthetic lower gear lube

If it was "junk" i wouldn't use it.....
I use nothing else.
There are some good oils out there, many will do, and, the nasty comments go away.

 

[seahorse5]

Re: Mobil one Full synthetic lower gear lube

I prefer to use a full synthetic gear lube in my 1995 Evinrude Ocean Pro.I cant seem to find anything except a synthetic blend in my area.I

Go to your closest Johnson-Evinrude dealer and buy their HPF-pro which is a fully synthetic gear oil, the same one that goes 300 hours in the E-TEC motors.

 

[Flukinicehole]

Re: Mobil one Full synthetic lower gear lube

KLOTZ is the best.

 

[bamadave]

Re: Mobil one Full synthetic lower gear lube

FYI, Aviation engines have seen the cylinders glazing from using synthetic oils. FAA not recommending using it now.

 

[Bwalker]

Re: Mobil one Full synthetic lower gear lube

FYI, Aviation engines have seen the cylinders glazing from using synthetic oils. FAA not recommending using it now.

thats not accurate. Mobil introduced a piston engined air craft oil a few years backa nd had some issue with holding lead in suspension that may or may not have been related to it being a synthetic oil. Problems were widespread so they pulled the oil off the market. They were the only ones to market a syn av oil FWIW and I do not think the FAA had anythign to do with their descision to pull it, although I am not certain on this.
The problem was not cylinder glazing.

 

[WillyBWright]

Re: Mobil one Full synthetic lower gear lube

The advantage of a marine-specific gearlube is their additives which allow more water content in suspension before separating. If your gearcase don't leak, don't worry.

 

[LubeDude]

Re: Mobil one Full synthetic lower gear lube

Not quite, Amsoil marketed one a few year back but quit due to poor sales. It flew around the world if I remember right.

 

[Bwalker]

Re: Mobil one Full synthetic lower gear lube

Not quite, Amsoil marketed one a few year back but quit due to poor sales. It flew around the world if I remember right.

I wasnt aware of that. I do believe that Mobile AV-1 was the first. At any rate the oil was reformulated in the lab and the lead suspension issue was solved. However Mobil thought(and rightfully so) that the market was soured on Syn oils for this application and pulled the product.

Back to the subject at hand. I wouldnt use a synthetic oil in a lower unit application if you payed me. Many synthetics when mixed with water have issues.

 

[walleyehed]

Re: Mobil one Full synthetic lower gear lube

Bwalker, you obviously have an opinion that doesn't seem to jive with alot of folks here.
Back when my Father was an OMC dealer, he was asked to help pit-crew some outboard races with some of the best names in Racing at that time, and from what he learned way back when, he's never put anything in his lower units but amsoil (even before the marine grade) ever since....I use it, but when I installed new gears in my lower unit, I used the std, off the shelf marine gear lube for about 50 hours, then rinsed and went to amsoil gear lube. 100RPM worth right there.
Now, if it was not up to the task, I don't think it would handle the abuse I give it testing SS props. I have "about" 475hrs with the amsoil in the lower, and have changed it once, and I'd say I've ran real close to 100 SS props on that rig now, just testing them.
I can't say I've had any issues what-so-ever.
Is it the best? I don't think I'm in any way qualified to answer that. Does it work in severe conditions? Yes, it does.
I think it's fair to say anyone can post what they use, what works for them or doesn't work, but when we start saying "that stuff is junk", I think we need to draw the line..if you've had a failure with "X" product, these folks want to know...that's why we are here.
If you "haven't" had a failure, or haven't used it, it's really only opinion, and not of much use to the forum, so let's stay "fair" with what one would call "junk" and/or "the best".

 

[Texasmark]

Re: Mobil one Full synthetic lower gear lube

Hey Kenny, Would you elaborate on your comment about 100rpm and Amsoil gear lube? Did you pickup a hundred just by changing oil? Also is it hypoid, or GL-5 rated? Viscosity?

I'm asking these questions because all marine lubes were hypoid type (whatever that means) for as long as I could remember then along comes Pennzoil Syn in Gl-5 at 75w-90 viscosity. Currently running it and seems fine. And then I hear about the OEM's offering full syn now but have no idea as to what they are otherwise.

Thanks,

Mark

 

[Bwalker]

Re: Mobil one Full synthetic lower gear lube

I never said amsoil gear oil was bad, I simply stated that some synthetics have issues with water and that I wouldnt use them. Especially one that is not marketed as a marine lower unit oil like Mobil 1 gear lube.
As for the 100 rpm increase. I think one could chalk that up to a change in viscosity and not any inherant advantage of the base oil.

 

[ZmOz]

Re: Mobil one Full synthetic lower gear lube

The difference with Amsoil is it comes with a warranty. If you have an oil related failure they will buy you a new lower unit. Try that with any other brand.

 

[Bwalker]

Re: Mobil one Full synthetic lower gear lube

The difference with Amsoil is it comes with a warranty. If you have an oil related failure they will buy you a new lower unit. Try that with any other brand.

Determining that a oil caused a failure is very, very difficult. I think you would have a very hard time(IE lots of $$$) proving conclusivly that any oil actually caused a failure, let alone collecting money froma company like Amsoil.

 

[ZmOz]

Re: Mobil one Full synthetic lower gear lube

Determining that a oil caused a failure is very, very difficult. I think you would have a very hard time(IE lots of $$$) proving conclusivly that any oil actually caused a failure, let alone collecting money froma company like Amsoil.

The burden of proof is on Amsoil. All you have to do is say it's broken, and they have to prove it wasn't because of their oil. Collecting money from them is no different than collecting money from any other company that offers a warranty.

It doesn't really matter anyway, because you will NOT have an oil failure just because you were using Amsoil...unless they happened to make a bad batch. (which is just as likely to happen from any other manufacturer) But, if someone is afraid to use synthetic because their brother's friend's mechanic told them it might cause a problem, having a warranty is a good safe way to prove them wrong.