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Oil

On or around Wed, 20 Apr 2005 22:11:20 +0100, "Huw" enlightened us thusly:

actually, I reckon for an engine designed in about 1960 it was pretty advanced, and the basic design can't be that bad or it'd not have survived so long.

Bear in mind that in 1960 a car that did 100,000 miles without a rebuild was rare... and the buick/rover V8 will, if serviced regularly and properly, manage more than that before it dies.

Designers in 1960 were probably looking at an average engine life of 50,000 miles... and more to the point, average use patterns that meant that most drivers would take probably between 5 and 10 years to do that mileage.

However, doesn't alter the fact that the engine was designed originally when

20W50 was normal oil, and thinner ones were only for specialists and racers. My BMW bike engine dates from the same period and that too is only supposed to run on 20W50 - and, indeed, it doesn't like thinner stuff, quite noticeably.

But the point abut temperature ranges is relevant. In this country it's rare for the ambient temp. to go over 25C, and that makes a difference to the engine operating temp. as well, or rather, to the oil temp. - in temperatures of 35+, the oil is not going to cool so well, even with an oil cooler.

Reply to
Austin Shackles
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I always thought that name was a joke when we used to do work for R J Mellor (who sold out to Fuchs).

Reply to
Mother

"Bob Hobden" wrote >

Had a good look at the can and none of the numbers/letters you all mention is on it as far as I can see. The BMW handbook is vague, indeed I had to search for the correct oil to use and found it in the service book.

Just spoken to Castrol Tech Help and they said it would be fine under the circumstances "any oil is better than no oil" was one comment. They also mentioned they are bringing out a SLX Longlife 04 very shortly which is an update on 1.

Reply to
Bob Hobden

There are already two versions of BMW Longlife specification suffixed by a year date code. The proposed new specification is likely for further extended service intervals of between 20,000 and 30,000 miles similar to VW/Audi, Mercedes and Vauxhall's existing specs.

Huw

Reply to
Huw

Methinks this might not be the right newsgroup to be saying that......

FWIW, it's not a particularly powerful engine (as standard), it isn't particularly fuel efficient, isn't noted for longevity, BUT it IS a good all-round package in terms of weight/size/power. Anyway, this is irrelevant to the discussion on oil!

Reply to
Badger

It also worth remebering that when it was "Roverised" it in the days when Land Rovers were expected to run on any old oil and fuel, anywhere in the world, not just outside flashy hotels etc..... ;-) Richard

Reply to
beamendsltd

I wonder if those service periods will be retrospective or just for new engines.

Reply to
Bob Hobden

Well I can only go from your previous description of the engine and it is the only conclusion anyone can deduct from it ;-)

Huw

Reply to
Huw

New engines only, partly because they will need new service computer logic mapping and partly because the filtration capacity will probably need improving on at least some models.

Huw

Reply to
Huw

Whatever makes you happy.

Reply to
Badger

On or around Thu, 21 Apr 2005 09:55:37 +0100, Mother enlightened us thusly:

"Dr Fuchs off to the Antarctic"

Reply to
Austin Shackles

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