E
EMB
Guest
Austin Shackles wrote:
> it also tends to depend on use, as well as quality of oil. if you go
> racing, you run the engine flat out most of the time, and the oil has to
> work a lot harder. Makes sense to change it frequently.
>
> some of the modern oils in modern engines are unbelievable, though.
> Mercedes trucks, for example, are now producing engines which, on admittedly
> very expensive synthetic oil, have 100,000Km oil change intervals in normal
> use. I daresay they have better filtration too.
A lot of them have really high-end centrifugal filters, and
"self-changing" oil whereby they replace some of their oil on a
continuous basis (new oil from an onboard tank, and used oil into a
waste tank). But large diesels are a very different animal from the
lightweight high-speed diesels - oil changes are vital to prevent sludge
buildup (I have seen some new engines with 10k mile oil change intervals
that are totally blocking their turbo oil feeds by 40k miles).
Good quality oil is really important - I'm not sure of what's available
to you in the UK but I tend to stick with the big-name oils and avoid
the "unknown" cheaper oil.
--
EMB
change two to number to reply
> it also tends to depend on use, as well as quality of oil. if you go
> racing, you run the engine flat out most of the time, and the oil has to
> work a lot harder. Makes sense to change it frequently.
>
> some of the modern oils in modern engines are unbelievable, though.
> Mercedes trucks, for example, are now producing engines which, on admittedly
> very expensive synthetic oil, have 100,000Km oil change intervals in normal
> use. I daresay they have better filtration too.
A lot of them have really high-end centrifugal filters, and
"self-changing" oil whereby they replace some of their oil on a
continuous basis (new oil from an onboard tank, and used oil into a
waste tank). But large diesels are a very different animal from the
lightweight high-speed diesels - oil changes are vital to prevent sludge
buildup (I have seen some new engines with 10k mile oil change intervals
that are totally blocking their turbo oil feeds by 40k miles).
Good quality oil is really important - I'm not sure of what's available
to you in the UK but I tend to stick with the big-name oils and avoid
the "unknown" cheaper oil.
--
EMB
change two to number to reply
