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oil

Graham
Was talking to those guys recently
They are the cheapest by far.
Thanks
Niall
 
Hi Niall
Dont make any comments on the oil , just get the info together.
I may be going to the Uk and if so may be able to save on the carriage for
you. See if you can work on the VAT part as this is one area I cant help.
john 92HDJ 80 1HDT
 
Hi Graham,
THat's who John uses.
I have been chatting to Chas about trying to get a 'club' discount
(shouldn't be a problem) and also doing a bulk buy, but I still haven't
convinced myself that the it is worth it unless one goes for extended
drain periods.
--
Regards,
Julian Voelcker
Mobile: 07971 540362
Skype: julianvoelcker
Cirencester, United Kingdom
1994 HDJ80, 2.5" OME Lift
 
John,
I don't know what you know about Halfords, but they don't sell
expensive things cheap. IMHO their stuff is just that - cheap.
--
Rgds,
Roman (London, UK)
'92 HDJ80
On 11/27/06, John Byrne <[Email address removed]> wrote:
 
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Ian
Thanks for the Heads-up
Now book-marked...
Graham.
Ian Rubie wrote:
 
Hi Guys
I have been running the cruiser on fully Synth for the past few years and my supply has run out.
I have to buy it in the UK and cheaper to buy a good few litres to save on shipping.
Its quite expensive compared to Dino.
So before I make a decision I was wondering if I could find out a little information.
I know some cruisers use no oil and some use a little and mine uses some.
But how is oil used or burned in the engine,???
how is this corrected or reduced, ???
would using a Mineral oil V a Synth oil use less oil,???
would using a Mineral same grade oil as a Synth reduce consumption because of its voscosity,???
What is usual /average for the 1HDT engine to use or is that an individual thing,???
where does oil in the engine go to burn off if it does and where to cool the engine as appossed to the collant,???
I am aware of the pros and cons of both Synth and Dino oils but lack the knowledge of the mecanical side of things.
I have asked questions from the manafacturer but would prefare the non bias answer.
Sorry for wreaking your heads but just need to ask.
cheers
john 92HDJ 1 HDT
 
John,
Oil is splashed or pumped round the engine for lubrication. Two of the
obvious places for oil are the cylinder head and the bores. When the engine
is new and all of the components fit properly there is very little oil lost.
When there is a bit of wear the oil loss starts. When the piston rings and
the cylinder bore have worn a bit then some oil can get past the rings up to
the combustion chamber and it will burn off, so will any oil trickling down
valve guides that are worn. This burnt oil manifests itself as blue exhaust
smoke and is not a concern unless there is lots of it. As a point of
interest, years ago some engines were designed to use oil, the old 3.5L
rovers would use a pint in 150 miles.
You cannot 'correct' or reduce oil consumption without major engine
work, re-boring the cylinders and fitting new rings or getting the valves,
guides and seats re-done. This is expensive and usually not worth it for
just oil consumption.
Mineral ver. synthetic should react in the same way, unless synthetic
is less prone to burning off, I am not sure about this.
Changing the viscosity will have little effect as the oils are all
fairly thin at the temperature that they operate at. While on the subject of
viscosity let me expel a myth. The theory is that putting a thicker oil in
gives you a better oil pressure, this is true, the myth is that this is
better for the engine. A thicker oil needs more pumping as it is harder to
push round, resulting in higher pressure. A thinner oil is easy to move
round so it gets to your engine but will give less pressure. The best bet is
to stick with maufacturers spec.
There is no average oil use, I do not know if mine uses any, if it does
it is a very small amount as I never notice it.
Oil burns off in the combustion chamber. The oil does not go anywhere
to cool the engine, cooling is purely incidental to the oil being pumped
round for the lubrication cycle. Oil coolers on both engine oil and
transmission fluid are there to keep the oil cool for lubrication, not to
cool components. Coolant is pumped round purely to cool the engine. Smaller
auto. tranmissions do not need coolers as they do not reach the higher
temps. that the cruiser seems to suffer from.
Regards,
Clive Marks
Home: +44 1293 514600
Mobile: +44 7821 491897
Crawley, West Sussex, UK.
 
A small addition to Clive's excellent write-up.
Some engines do rely the oil to distribute high temperatures, to even out
the differences so to say. E.g. some engines have a nozzle under each
piston, squirting oil up inside the piston for each stroke to prevent it
from overheating.
--
Ugo Hu, Oslo, Norway
HDJ100, Auto, AHC, 2001; ex HZJ80
 
Thanks Clive
Nicely explained, your right the Synth has better shear abilities and a better high temp stability so in theory should burn less.
The issue as I said is that I have no more Synth left and as usual I question every thing I do a few times and like to get advice aswell.
The Synth I use has a high TBN so remains stable longer and with top ups I seem to be increasing the stability by a percentage all the time its in the engine. But it is costly and I am always weighing things up if you know what i mean.
So far it does not need to be changed.
I would like to go back to Dino just to see how long it lasts compared to the Synth but then I would have the same issue as when i started that the Dino leaves deposits and the Synth cleans all these away, but then needs to be changed quicker than usual so again costly.
Cheers
john92HDJ 80 1HDT
 
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