Land Rover Defender and oils

Conoco that's all I can say it is the best of the mineral based oils. Proof at the end of 2007 the new AIP CJ oil spec will be out only Conoco & Synthetic oils will be able to make that spec! So tell me are standard mineral based oil as good now? Why not just use the best now and reap the benefits.

Rick.....yeh, I know that they're best used to compare between and in a series of tests, you can see "trends" developing....that's very useful....especially if you see a cntinually increasing result or a sudden change ....as you did with valve guides.....what engine is it that's got the sudden increase in silicone?....is it an aluminium alloy? - cos some have a high content of Si in the alloy itself...hope it's not an indication of alloy block, or component thereof, wear or degradation.

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Originally Posted by byron

Rick.....yeh, I know that they're best used to compare between and in a series of tests, you can see "trends" developing....that's very useful....especially if you see a cntinually increasing result or a sudden change ....as you did with valve guides.....what engine is it that's got the sudden increase in silicone?....is it an aluminium alloy? - cos some have a high content of Si in the alloy itself...hope it's not an indication of alloy block, or component thereof, wear or degradation.

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both the 300Tdi and Nissan TD42T, and both jumped from approx 5ppm to 22 and 24 respectively, and sodium increased slightly. All other levels are excellent and normal, with both Fe PQ levels lower than ever.
Hopefully Terry Dyson at Dyson Analysis can shed some light on it.

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Originally Posted by QSDT

Conoco that's all I can say it is the best of the mineral based oils. Proof at the end of 2007 the new AIP CJ oil spec will be out only Conoco & Synthetic oils will be able to make that spec! So tell me are standard mineral based oil as good now? Why not just use the best now and reap the benefits.

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Bull#hit.
All the majors can and will make the CJ-4 spec in mineral as well as semi and full synths. Do you really think the major oil companies chemists are a bunch of numpties ?
FWIW, the CI-4 and CI-4+ spec will be available for a long time to come. The new spec is aimed at reducing the impact on the new exhaust catalysts being mandated in the US and Europe for '07 engines.
Here's an article on the CJ-4 spec from the US and why they are introducing a new oil spec so soon after CI-4+ http://www.ttnews.com/lmt/Apr06/cj4.asp

From a Shell website...

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Shell will introduce our API CJ-4 mineral oil based formulations in late 2006. Our synthetic products will not be introduced until 2007..........
Shell will begin to market API CJ-4 oils beginning July 1st in bulk and drums for those customers who have an early need for these products. Full availability will be in time for the official API licence date of October 15, 2007.

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and from Mobil

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To meet the American Petroleum Institute’s API CJ-4 diesel engine oil specification, which encompasses the new requirements for Proposed Category 10, (PC-10), ExxonMobil will introduce a new formulation of its "Million Mile Oil," Mobil Delvac 1300 Super 15W-40, in October.

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Are you the Conoco Importer, on the payroll or merely trying to justify your choice of lube ?

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Originally Posted by isuzurover

There is a trickle down effect - what is used in race applications will usually end up in normal vehicles when the technology becomes cost effective.

The US trucking industry is also a driving force (pun intended) behind a lot of the R&D that goes on. I recently drove a 110 through the US, and when you get overtaken in 40+ degree heat by an A-triple, running 30+ psi boost, you know they must be running good oil.

BTW - regardless of where the oil developers are based - they do have warm weather testing facilities. I have inspected a few of which, and they are capable of sustaining 55deg or higher, at anywhere from 0-100% humidity, for as long as is required.

Whichever way you look at it your argument is flawed.

p.s. Come and spend a summer in Karlsruhe or Freiberg, then let me know what you think about the German weather.

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I think you misunderstand my argument - may argument (a comment really) is that the most visible result of oil research is to extend low temperature abilties of oil to an extent totally unnecessary for most Australians. This can be compared to the fact most car designers live in cold climates and design cars that are greenhouses when parked in the sun - if they lived in a hot climate they would not do this. Certainly Germany has hot summers - it is a continental climate for the most part - but the summers are a lot shorter than for most of Australia, and the winters a lot longer and colder.

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Originally Posted by rick130

Are you the Conoco Importer, on the payroll or merely trying to justify your choice of lube ?

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No I've just seen what it can do. My Brother has CRF250 2005 ''Honda'' dirt bike, he's had almost every model. At around 115 hours he's due for a rebuild, rings , cam, valves, bore hone, etc using $90+ Motol Oil good stuff. Now he's using Conoco Super Sport SHP 4T at $11 a liter. At 115 hours sent it to the bike shop for rebuild, got a call 4hr later asking why was the bike there? They had opened it up and there was nothing worn in it they said it looked like new! They put a new set of rings in just because they where in there but it didn't need them. He spent the money he saved on a new set of Excel Rims. He said it's the best ever and so did the Bike Shop because they know how he rides. He only knows ONE SPEED flat out. That's why I know it's the best because no other oil lasted in his bike even the Synthetic Motol wasn't as good with wear protection.

After all this,

What is the best oil to use on a td5 defender ? ;-) ... all them numbers confused my head,. it hurts now.