Follower scar oil tests (2018)

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Bel_Ray_10W50_V-twin_Synthetic_with_BG_MOA_8.5%
Follower scar oil tests (2018)

450 lbs load
3.68 total heat from friction
2.436 heat from viscous friction
3.22 heat from high pressure shear

The BG additive raised the heat from friction and lowered the load capacity. Not a good combination.
 
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Amsoil_Motorcycle_10W40
Follower scar oil tests (2018)

183 lbs load
2.66 total heat from friction
2.046 heat from viscous friction
1.7 heat from high pressure shear
Safe for wet clutch
Safe for Norton -Low viscosity may cause excess oil consumption in hot climates

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Amzoil_Signature_Series_5W50_API_SN-SM
Follower scar oil tests (2018)

117 lbs load
4.85 total heat from friction
3.733 heat from friction
No data for heat from high pressure shear
Not safe for wet clutch
Not recommended for Norton

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TriboDyn_20W50_Motorcycle
Follower scar oil tests (2018)

137 lbs load
5.58 total heat from friction
4.293 heat from viscous friction
No data for heat from high pressure shear
Safe for wet clutch
Not recommended for Norton
 
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Have you tested the Valvoline 4 stroke 20w50 conventional I sent you? I may have missed it.
 
Just tested it
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Valvoline_Motorcycle_20W50
Follower scar oil tests (2018)

201 lbs load
4.09 total heat from friction
3.578 heat from viscous friction
2.71 heat from High pressure shear
Safe for a wet clutch
OK for a Norton in moderate climates, too much heat from friction to use hard when it's hot.


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Kendall_GT1_High_Performance_20W50
Follower scar oil tests (2018)
!40 lbs load
4.73 total heat from friction
3.636 heat from viscous friction
No data for heat from High pressure shear
Not recommended for wet clutch
Not suitable for a Norton


And now for the big surprise. This is the oil I use in my 68 Mercedes so I had part of a bottle laying around. I did not expect it to do this well.
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Royal_Purple_HPS_10W40
Follower scar oil tests (2018)

458 lbs load
1.78 total heat from friction
1.026 heat from viscous friction
1.7 heat from high pressure shear
Not safe for wet clutch
Great result and certainly safe for a Norton but it may cause excess oil consumption in hot weather due to it's low viscosity.

I have some 20W50 HPS on the way for testing. If the 20W50 tests that good with it's very low heat from friction and more than adequate load capacity, it could be the best bet yet.
 
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Thanks Jim. Glad to see the load is that high on the conventional Valvolene. I rarely ride mine that hard and I rarely ride when it's that hot so will suit me fine. I've checked the head temps on all of my bikes using the Valvolene and they are generally in the 275 to 300 range when air temps are in the mid 80's. Oil in the tank temps are around 180.
 
NKN said:
Should have a look at [HASHTAG]#820[/HASHTAG] to discover that Carrefour's oil Syn 5W-50 looks to be a very good oil for Norton.

https://webshop.carrefour.eu/culture-loisirs/accessoires-autres/auto/huile-de-moteur-5w50-5l

And at € 6,80/liter looks rather unbeatable, no?
Click to expand...

Waoow. I had missed that post. Interesting inded as the majority of the tested oils are not easily commercially available in Belgium, let alone affordable. Would you have a picture of the tested can to make sure I get the same locally as you do in France? Carrefour marketing strategy being what it is...

I just had a look at the above link, are you sure that is indeed the tested oil as this seem to be a very generic low cost car oil, suitable both for petrol and diesel engines?!?
 
About the Carrefour 5w50, few times ago it was supplied by Mobil (Exxon) and so should should be Mobil 1 -5w50, now it "could" be supplied by Total (spain!).....the super market buyers are changing from time to time , according to price........and Total "spain, could be Repsol ....!!!
I was on oil tanker before , and we load in France at the Exxon ( ex ESSO) refinery (along the river Seine) to unload the oil at Castrol in Belgium (Antwerpen).......who knows what they do ! after it is a question of additive ?
 
marinatlas said:
About the Carrefour 5w50, few times ago it was supplied by Mobil (Exxon) and so should should be Mobil 1 -5w50, now it "could" be supplied by Total (spain!).....the super market buyers are changing from time to time , according to price........and Total "spain, could be Repsol ....!!!
I was on oil tanker before , and we load in France at the Exxon ( ex ESSO) refinery (along the river Seine) to unload the oil at Castrol in Belgium (Antwerpen).......who knows what they do ! after it is a question of additive ?
Click to expand...

Same issue with a supermarket labelled Islay Single Malt I have bought, always a good price, but sometimes it is Bowmore, sometimes it is Laphroiag!

Still, maybe I should be pleased my taste/smell system can tell the difference!
 
marinatlas said:
About the Carrefour 5w50, few times ago it was supplied by Mobil (Exxon) and so should should be Mobil 1 -5w50, now it "could" be supplied by Total (spain!).....the super market buyers are changing from time to time , according to price........and Total "spain, could be Repsol ....!!!
I was on oil tanker before , and we load in France at the Exxon ( ex ESSO) refinery (along the river Seine) to unload the oil at Castrol in Belgium (Antwerpen).......who knows what they do ! after it is a question of additive ?
Click to expand...

It is all about the additive package, and the base stock.

Even if it uses the same base stock as Mobil 1 it could still have a different additive package. Exxon/Mobil does not supply the additive packages for their oil.
I believe Mobil 1 oils use an additive package from Lubrizol who supplies the additive packages for most US oils.

Most base oils are sourced on the open market from a choice of qualities, grades and suppliers.

It could be a high grade synthetic [which today means nothing other than hopefully it will be highly refined oil of some type] or a "conventional" with minimal refining and a lower price.

Then who-ever is ordering the oil specifies the qualities desired and the additive package supplier [almost never the same people who supply the base stock] gives them a pre-approved package to be added to the specified base oil. The pre-approval gives them the ability to add an API or JASO certification to the product without actually testing each product. Reportedly, the common problem is the additive package may not be used at the recommended dose, to save a bit of money.

I really don't know how Carrefour buys their oil or if they specify the quality, but the usual procedure would be the oil supplier sells the retailer the best [highest priced] product they can get them to buy. Then if they are a good supplier, they will actually supply what they sold them.

I do know that the oil I tested would work very well, even in a competition engine.
Now whether the next can would work the same -I don't know.
And that is the problem with box store oils.
 
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SteveA said:
Same issue with a supermarket labelled Islay Single Malt I have bought, always a good price, but sometimes it is Bowmore, sometimes it is Laphroiag!

Still, maybe I should be pleased my taste/smell system can tell the difference!
Click to expand...

Unfortunately it's NEVER Lagavulin!
 
Jim,
When you've finished testing which oil works best in Norton engines, maybe you could develope a test for which Scotch works best in Norton riders.
 
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