Oil and grar lube
 

I'm sure this was asked a bunch of times before.
Best oil for 525's?
Gear lube for Bravo XR / speed master shorties?

Gear lube for Alpha 1 Gen I ?? Can I use the HP gear lube reccomended for bravos on the old Alpha?

Thx
P

I run royal purple in both the engine and drives..Rob

I wouldn't run royal purple if it was free. I run AMSOIL Series 2000 Racing Oil and AMSOIL Marine Gearlube 75w-90.

That goes for me too.:drink:

How about my "Alpha question?

mobil 1 V twin oil

Just curious - why the down and out on Royal Purple. It was recommended to use in my Bravo drive after I had the gears in the lower case cold processed. And, I thought Konrad uses in their drives? Thanks.

The Mercruiser HP is good for your Alpha. I would go with the Amsoil for everything else.

He's an Amsoil salesman. Yes, Konrad uses Royal Purple in their drives.

RP in the gears is cool :drink:

Methanol dragsters guys like RP.

As far as I know HP can be used in any drive.

Because its not half the product it used to be. It used to be a very good product, but they cheapened it up, and still charge the same amount of money for it. If you don't like AMSOIL, then I would use MOBIL 1 or REDLINE. They are also good products.

The offshore (racing) guys I know that use Amsoil use this.

http://www.amsoil.com/storefront/svg.aspx

Very good product.

Amsoil Marine may be more for runabouts etc?

I switched to 15W-50 Motul 100% synthetic (non-pao). Synthetic from the ground up.

Amazing stuff. Engine just runs better.

Thats good to hear, their products are supposed to be very good also, however, at least where I am at, pretty damn expensive too. About $15/qt.

Where are you buying the Motul? How long before an oil change?

Is there a difference in the hours you can run a conventional oil vs. an oil Motul?

I get my motul from these guys. ABout $30.00 for 2.1 qt containers.

http://www.motorspotstore.com/moraoi.html


It is totally synthetic/non-pao...never was and never will have a drop of dinosaur juice in it.

They run cars at LeMans for 24hrs and most use it.

How far can you go before changing? I would say the usual 20 hrs and do an analysis before changing. I would bet if no water or gas in in the oil you can get out to 40-50 hrs.

Great stuff. I wish Mobil offered it's M-1R wich is what NASCAR uses. It is different than what we get off the shelf. Comes in drums I hear.

What on earth is a non - pao..???
I'm do for an oil change in about 5-6 hours. After Destin I do it.. but still not sure what to use.

Motul has it's begining form a testube in a lab and it's molecules put together from scratch.

A PAO is a well refined base that begins with a fossil fuel and the hydrocarbon backbone is modified and there are grades of "Synthetic PAO's" from Group III to Grp V.

M-1 V-Twin is GRP-V as are most of Amsoil's products that sell for $10/qt and Redline's as well. They are outstanding.

Motul is for the oil coniseur who wants something that is unique and a chemistry that holds up well under intense heat and intense duration.

A good oil is like what happens when you put things in boiling water. Carrots become soft....eggs when boiled become hard....but the GRP V's and Motul are like coffee....hotwater makes them perform and they are enjoyable because of their chemistry and engineering design.!

How's that for a brief laymen's explanation.

Try Motul 15W-50....it's worth a try for the fun of it!

What on earth is a non - pao..???

Very simple answer, ...anything that is not a PAO

A PAO is a group IV base oil only, it is a synthesized hydrocarbon, the result of a chemical reaction.

GroupII and III are really Group I products, further processed.

Mobil 1 is a PAO Group IV product with esters, (Group V)

Mobil is the largest producer of Group IV PAO in the world, that is why it is used in Mobil 1 products, besides it is an outstanding base oil.

And Motul.....Group V

Ken

Ken..What is your take on Motul 100% Grp V. Ester oiils?

Esters,both Dibasic acid esters and Polyol esters are also great base stocks, low pour points (not that important for a boat), important for jet aircraft and equipment in the Arctic.
They also have great thermal stability, (people on the board seem to panic when oil hits 170F) , excellent solvency, can dissolve, clean up deposits left by other products. Additive selection is very important to prevent hydrolisys and oxidative stability. Chemical resistant seals are recommended as esters tend to have seal swelling properties.

I would question the 100% synthetic comment.
The base oil is no doubt 100% synthetic but industry practices dictate additives to be solubleized in a petroleum base stocks.

With that being said, is any 100% synthetic oil 100% synthetic?

Like most of the oils discussed on this thread and other threads the Motul product is overkill for 99% of the users on
the board. People spend huge dollars for a product and then change it way before the the products life is even half up.

I guess using expensive oil is "like a badge of honor"

Do I use a full synthetic? No I use a blend and even though I have access to "full syn" products, in my applications I can't beat a blended product.

Ken

After all this great info.. (some of it is over my head) I still don't know what to use for the 525's.

1.) Valvoline VR-1 20W-50/ Castrol etc if you want to use a good conventional oil

2.) Merc 25W-40 Semi-syn is a good product.

3.) M-1 Silver Cap 15W-50 at Wally Land....change 25 hrs....for a fully synthetic. Great protection for the $$.

4.) If you run extra hard or race then M-1 V-Twin or Amsoil V-Twin or Amsoil Severe Service 20W-50 or Redline 20W-50 HP or Motul 15W-50 or RP 20W-50.

With the 4th category offering the most heat and shear stability /protection and all are pretty close performance wise and cost wise here. ($ about $10 or so /qt)..

mobil 1 v-twin & you can buy it @ autozone along with a k&n oil filter .

How much better is the Royal Purple drive oil vs. the Merc HP oil?

Read this and choose for yourself. Me personally, would never touch anything Royal Purple.

https://www.amsoil.com/products/gear...hitePaper.aspx

Good study, looks like the amsoil severe is the way to go according to that. Why don't more of the go fast boat guys run it then? I always here royal purple?

Appears to be an Amsoil funded study. Bias? WHo knows.


I always use Merc HP.

If I went to a full syn it would be either M-1/Amsoil SG/RP or RL.

i've always run the merc hp as well, but was told to switch to the RP due to my horsepower rating on the stock B1..... so i'm in research mode.

A lot of go fast guys do run it. Do you ever see anyone compare themselves to AMSOIL products? Usually not. Since usually they are inferior. Use the information and make your own decision. Redline, I will admit, does make pretty good products, however, they are typically twice, if not, three times the cost for not much, if any, better of a product.

Also, if that study was biased, wouldn't you think AMSOIL would make themselves number 1 in every test???