Offshoreonly.com - Marine Lubrication

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Re: Marine Lubrication

Quote:

Originally Posted by Rage (Post 1971241)

That is good to hear that you can still get a full synthetic at lower viscosities since Mobil1 has reportedly abandoned full synthetic except for the high viscosity motor cycle oils.

Spectro Oil blends a full synthetic(group 4) PAO in 0w-40, 5w-40, 10w40,10w50, 15w50, 20w50.
Ken

Re: Marine Lubrication

Quote:

Originally Posted by Hydrocruiser (Post 1979284)

You know your stuff 02man..

Here is my take:

The MCO (Like V-Twin) and HDEO (Delvac 1) are still Group IV/V and they have always been my top picks.

Oil fanatics are pizzed off to say the least...check this out..

I borrowed this from an oil thread...

Mobil 1 and Castrol Syntec have betrayed the public and ruined the credibility of synthetic oil.

Group III and GTL may be , or could be, as good or even better than PAO ...but why do oil companies feel it is ok to mislead us and price gouge as well?

Mobil 1 used to be under $4/qt when it was a true synthetic. Group III faux synthetics used to cost from $1 something / qt to $4/ qt.

Now Mobil 1 Group III Faux costs $6 /qt to $7 /qt... is it any wonder that I feel ripped off , and I am now strongly anti-Mobil 1?

Redline, Castrol GC, Amsoil, Pennzoil Platinum [on sale], Delvac 1, Delo 400, Rotella T and Rotella 5W-40 faux syn, Trop Arctic/Havoline/Motorcraft are on the 'A' list and Mobil 1/ Castrol Syntec are on the 'S' list.
I especially like Redline, it is now about the same price as M1 and Redline is still the best oil I've tried.

I am now using Penzoil/Amsoil/Redline or Delvac 1 in my cars and V-twin; Amsoil Severe Service Racing or Redline in the boat.

What is it about Redline that makes it the best oil you have ever tried?

Re: Marine Lubrication

Quote:

Originally Posted by Hydrocruiser (Post 1978615)

We know 15W-50 M-1 is a better choice.

Agree, but I'm still curious as to what Ilmor is putting in the motors.

Re: Marine Lubrication

Quote:

Originally Posted by Rage (Post 1979760)

What is it about Redline that makes it the best oil you have ever tried?

Redline and M-1 V-twin are mostly derived from Group V bases and therefore can go beyond 500*F before being destroyed. Most oils are shot at or around 400*F.

Re: Marine Lubrication

Quote:

Originally Posted by Knot 4 Me (Post 1979836)

Agree, but I'm still curious as to what Ilmor is putting in the motors.

I called today and they use 15W-50 M-1 interestlingly enough as does Sterling.:D

Re: Marine Lubrication

The question becomes do we continue with M-1 15W-50 from a number of you?

My answer is that in an offshore boat you need the best edge you can get if you are to see the most longevity from your engine. I like a Group IV/V synthetic best.

Here are the 2007 2,000lb. synthetic oil gorrillas:

M-1 V-Twin 20W-50/Redline 20W-50/RP 20W-50/Amsoil Severe Service 20W-50/Spectro 20W-50.The list is getting shorter.

Yes...15W-50 M-1 is still a great product and i use it as well. It is NOT on the list above however.

Re: Marine Lubrication

Hydro, what's your take on the new Amsoil 10W40 marine oil that is FC-W certified? Supposed to be an acceptable replacement for Merc 25W40.

Re: Marine Lubrication

Quote:

Originally Posted by Hydrocruiser (Post 1980048)

I called today and they use 15W-50 M-1 interestlingly enough as does Sterling.:D

That's what I figured. Thanks!

Re: Marine Lubrication

Quote:

Originally Posted by Knot 4 Me (Post 1980062)

Hydro, what's your take on the new Amsoil 10W40 marine oil that is FC-W certified? Supposed to be an acceptable replacement for Merc 25W40.

Mercury 25W-40 is a blend of straight 25 wt and 40 wt oils ...so I am told. The overall viscosity can not therefore be compared to a multi-vis oil as it supposedly does not have polymers that react and increase viscosity with heat. So the lowest viscosity the oil can be said to perform at is 25wt. Therefore a 10 wt is too light.

The bottom line is Merc's product is more comparable to a straight weight 40.

So using a 10W-40 multi-vis oil in place of a 40 wt will probably lead to some type of problems and most notably probably increased wear.

We hear that the following oil viscosities are used routinely and successfully;

15W-50
25W-40 Mercury
20W-50
15W-40 Amsoil Synthetic ("pleasure boats")
30wt if less than 50*F
40 wt for temps between 75-85*F
50wt for temps over 85*F

For 4-stroke outboards I like a 10W-40 such as Amsoil's or 10W-40 V-twin.

Re: Marine Lubrication

To address more concerns about Group III synthetic oils...

While I prefer Group IV/V bases, modern group-III oils can nearly match the performance of PAOs at about half the price. Because of this, PAO based oils are rapidly disappearing. There are new processes being investigated which may significantly cut the cost of producing PAOs, and make them an important component of oil again.