oil problem

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si844

New Member
Posts
368
Location
Southport, North-west
did an oil change 6months and 6k miles ago, checked it a few times since and been ok. started running funny other day so i checked it over only to find all my oil had gone. but where? theres only the odd drip out the bottom and tiny leek out the rocker box

disco is a 94 200tdi 210k miles
 
I was recommended not to use fully synth in my Disco. Reasoning went that the engines work best with the type of oils they had when they were designed, just plain old mineral, or semi-synth if you must. The newer synthetic oils are effectively more 'slippy' (smaller molecular structure) and can leak out through smaller tolerances than normal oils ... which means they can easily get burnt up when/if they bypass piston rings, for instance, but 'cos it's a small amount of oil they don't make as much smoke so don't get noticed ...

Having said that, it sounds almost plausible enough to be an urban legend to me ... but I still run mine on mineral ...

OTOH ... mate filled his up one morning, went for a drive, all OK. Next day went for a drive, engine felt lumpy after an hour, checked and no oil .. Oil cooler pipe connector stub had cracked and it had all leaked out within an hour ... might be worth checking the oil pipes etc, 'specially near the oil cooler ... ;)
 
Suppose air filter isn,t clogged up? Also have you checked the breather? Simple things first then maybe valve guide seals if new grade of oil doesn't solve it.
 
Picture and description from Rave. If you clean it with parafin or whatever, make sure it is absolutlety dry before refitting and starting the engine.
good luck
 

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I was recommended not to use fully synth in my Disco. Reasoning went that the engines work best with the type of oils they had when they were designed, just plain old mineral, or semi-synth if you must. The newer synthetic oils are effectively more 'slippy' (smaller molecular structure) and can leak out through smaller tolerances than normal oils ... which means they can easily get burnt up when/if they bypass piston rings, for instance, but 'cos it's a small amount of oil they don't make as much smoke so don't get noticed ...

Having said that, it sounds almost plausible enough to be an urban legend to me ... but I still run mine on mineral ...

OTOH ... mate filled his up one morning, went for a drive, all OK. Next day went for a drive, engine felt lumpy after an hour, checked and no oil .. Oil cooler pipe connector stub had cracked and it had all leaked out within an hour ... might be worth checking the oil pipes etc, 'specially near the oil cooler ... ;)


We run both of ours on fully synth all year round without any leaks, or loss (yes, hard to believe isn't it?) 5-30 during the winter and 5w-40 during the summer.

Cheers
Dave
 
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