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Hot or Cold Oil Change

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2 months 1 week ago #255269 by mammoth
Replied by mammoth on topic Hot or Cold Oil Change
Yes Morris, that is the big issue - the old oils allowed the dirt to be locked up in the sludge where it became relatively harmless. However put in a modern oil and the detergent starts to dissolve that sludge and releasing the nasties to do damage.
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2 months 1 week ago #255270 by Swishy
Replied by Swishy on topic Hot or Cold Oil Change
Personal Preference

<1>  hot and let it drain O/Night
<2>   Hot to trot
<3>  cold and let it drain O/Night
<4> cold

all in all 
does'nt really matter
horsez for coursez

cya
 
OF ALL THE THINGS EYE MISS ................. EYE MISS MY MIND THE MOST

There's more WORTH in KENWORTH
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2 months 1 week ago #255277 by grumpy gumpy
Replied by grumpy gumpy on topic Hot or Cold Oil Change
If you’re worried about sediment you can get oil galleries flushed out with a solvent, you just need to make sure you prime the system after, before you start it.
Gumpy
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2 months 1 week ago #255278 by werkhorse
Replied by werkhorse on topic Hot or Cold Oil Change
Weeell .... Back when I was throwing spanners ... We had a little trick for cleaning out some of the dirtier engines ... Usually long past their change interval ... Sometimes by mistake ... Sometimes by cost saving measures ...
This was mainly in Cummins engines ...we'd drain the oil, hot or warmish ... we'd get 40 litres of diesel and fill it back up ... Then fire it up and hold about 1000 rpm to get and keep pressure up ... Run it for a few minutes then drain and replace with new oil.

I was always amazed at what sort of sludge and crap came out of them.

Cheers

Werk
You might Laugh at me because I'm different, I laugh at you because you're all the same
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