copied from another forum:

 

Yeah, but what oil filters did he use ?

Sorry, couldn't resist. You can smack me now !

Cheers
DD

 

another easy one ... something that fell within:

... but despite that ... his speedometer broke

 

Clearly he was not making short around town trips- so I suspect that was the key to the clean engine and longevity!
And, in one sentence he says that he followed the service rcommendations "to the letter" and in another, he says he changed his oil every 3,000 miles, so which is it?

 

Saw the thread title and thought here's what I need to know. Get the good oil on what's best oil for an X308.

Didn't happen..

 

Do modern engines with oil changes per schedule and using any suitable spec oil & filter actually suffer oil-related problems at low mileages at all often? Everything I've seen says no. (Cars die because they're crashed or uneconomic to repair or whatever, but oil doesn't generally seem a problem.)

 

You've pegged it.

The wrecking yards are full of cars with perfectly serviceable engines that likely have years of life left in them.

I'm really hard pressed to think of any modern or even modern-ish engine that is known for 'bottom end' type failures or oil-related failures. When such failues do occur, however rarely, I'm betting abuse is the cause---abuse in driving habits/conditions or abuse by way of utter lack of servicing.

Of course engine *failure* and engine *wear* are two different things....although they'll eventually cross paths. A person intending to extract 250,000-300,000-400,000 miles or more of life out of an engine will be more concerned with lubrication issues than the other 95% of the population....who can get by with a fair bit of nonchalance.

Interesting to me, though, is that reciprocating assemblies have become dead reliable and extremely durable but manufacturers still seem to struggle with head gasket issues, my 2005 Honda being one example of many.

Cheers
DD

 

+1

If we're going to use one-off examples to prove a point, I have an acquaintance that does run a hot-shot delivery service taking ultra-urgent packages anywhere on the continent. His maintenance schedule: "none, too busy for that sh*t and it's a waste of money anyway"

The only time it gets an oil change is when it's in a garage for other reasons like brakes or tires etc. Rough calculations is that he puts 15-25K miles on the van between oil changes. The oil level is never checked unless the pressure light comes on.

He stopped for a few days at another friends house in FL last year and mentioned that it had a bit of a rough idle. For fun, the plugs were removed and found to be worn well past OEM's spec. Turns out they were the originals. The van at that time had over 400,000 miles on it. Fuel consumption specs have not degraded since day one.

He expects to turn over 500,000K early next year.

 

You actually did. Fussing over brands is a total waste of time. Follow the OEM specs and intervals and you'll be fine.

 

[QUOTE=Mikey;921688]You actually did. Fussing over brands is a total waste of time. Follow the OEM specs and intervals and you'll be fine.

Maybe Mikey,but you would think there had been some improvement in engine oil in the last 15 years going by my handbooks' OEM recommendations.

Like 0w/15 didn't exist back then.Not that I use it.

 

In your case mate...Penrite HPR5 5W40....when only the best will do ;o)
For the benefit of our overseas friends Pentite oil is wholly manufactured right here in Oz since 1929 and is a superb oil who's specifications far outstrip most other brands and types....do I like it....is their bear in the woods ;o]P

 

What 'problems' would it solve? The point that several of us are making is that the engines live very long and happy lives using what the OEM recommends. Most engines outlive the rest of the car in fact and go to their grave in serviceable condition. Pretty hard to fix what's not broken.

There's really not much data to go on indicating that any one brand or type is 'better' than another. The majority is just personal preference.

 

The 'feel good' factor ?

That's not a criticism; I have full appreciation for the feel good factor....so long as it's recognized for what it is.


Cheers
DD

 

now that the discussion has ripened a bit, it's time to mention a few
things that seem to be glossed over or ignored time and time again ...

- the usage pattern of many owners falls within the definition of
severe service as defined by most manufacturers. it does not
matter that some manufacturers are somewhat obtuse as to
the exact definition. under severe service, it is not as simple
as adopting the maximum oil change interval given by the
manufacturer for usage at normal speeds on long highway
trips. the severe service recommendations are as much a
part of the recommendations as the other parts which are
the only part quoted by many people

- the considerations underlying the the service schedule may include
factors other than longest life of the vehicle. they may include
for example the perception of potential buyers as to the total
cost of ownership or the cost of providing free scheduled maintenance

and finally ...

- that achieving a certain useful life in years or miles might not be
the goal of an enthusiast owner of a specific model. the goal of
those owners might be to keep the engine running at top notch
condition for as long as possible before rebuilding the engine of a
car that will never be sold. if an owner is going to keep a
specific vehicle indefinitely, then a maintenance schedule suited
to a finite life is counter productive.

If someone anticipates keeping a special interest vehicle in great
condition that is already a couple of decades old for another
decade or more, then it is not unreasonable to make the investment
required to achieve that goal.

The short version is that the goals of the individual owner may
not be those of the authors of the owners manual and the owner
needs to adjust accordingly. The owner must also think for himself
rather than blindly following advice which may not take into account
his particular circumstances.

While many Jaguars will end up in the junk heap like most vehicles,
there has always been a few more percentage points as compared
to more mundane vehicles that are kept going for much longer than
normal as special interest daily drivers.

When a vehicle is a couple of decades old, if you want the car
to take care of you, then you must take care of the car.

If the vehicle is only a decade old, and you hope to make it
through another decade ... then same thing.

++

 

Really?

Jag was part of Ford when these cars were built. They put into black and white the definition of 'severe service':


"Towing
Heavy Commercial Use
Operating in Dusty Conditions
Off Road Operations"

 

I am always a firm believer in oil changes. Every 5000 kilometers or 3 months NO EXCEPTIONS, that being said I use conventional oil. Some people are nuts about oil changes, my dad for example has a BMW garage queen that never sees more then 500 kilometres a year. The oil is drained at the end of the driving season and fresh oil is added before storage every year. The oil comes out of that car so clean that our neighbour takes the old oil we pull out and runs is in his 560SL. Everyone has their own way of thinking but keeping a car in top shape is never a bad thing.

 

Yes, really.

First, Ford owned Jaguar for several years. But, as most members know and
are more than willing to acknowledge, all of the modern Jaguar V8 engines
were engineered in house by Jaguar and not Ford.

It is also true that in the past, you have relied on the Jaguar literature being
vague as to what constitutes severe service. In doing so, you have dismissed
definitions outside of Jaguar as being not applicable. But today, you are happy
to drag Ford into the mix simply on the basis of a financial connection.

It might be convenient to you, but your offering is selective ....

From the official ford.com site:


from the official jaguar.com site:

Jaguar clearly equates short journeys to severe conditions.

Ford clearly adds idling in addition to operation at low speed and in heavy traffic as part
of their definition of severe service.

Semantic quibbling aside, if the service requirement is equal to the service requirement for severe conditions, and is only separated by the word "or", then it is equivalent in the
end result.

Again, most Jaguars operated in an urban environment fall into the severe service
category. It is something that is important to consider when reading the oil
change recommenations. Manufacturers like to point at the requirements for
ideal operating conditions while leaving the severe service requirements in a
footnote. It's good for sales, and also convenient on warranty claims.

In any case, whether you choose to stand by the Ford definition or not ...
they both link urban operation as being a severe service category and it
is a disservice when dispensing advice to ignore that fact in order to
force the answer into a certain mental bias.

++

 

It's all been thrashed before, no need to re-pound our keyboards

https://www.jaguarforums.com/forum/x...change-106168/

unless some new data has surfaced..........

 

Manufacturing tolerances and materials and oils have improved greatly in the last 25 years,to the extent that now we can expect motors and gearboxes to last 200,000 miles as a matter of course.
I don't think it matters much what brand of oil we use, just that it has the correct viscosity for the range of temperatures that the car experiences.
Gearboxes in these cars require a specific type of oil.