Not necessary unless you've gone way past the scheduled service interval or you have a RS Liberty EJ20G with tappet noise.

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RS Liberty - Because WRX's are only good for parts...

fill the sump with diesel/kero, run for 2 minutes, drop.

done.

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Long live the WRC

Showing my ignorance but wouldn't that be damaging or the potential of damaging the engine Tuna?

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[COLOR=Black]Liberty GT Spec B tuned 240 HP & 372 Nm at the hubs.[/COLOR] "Instead of banning high performance cars - ban low performance drivers"

light oils, not suggesting the car be taken for a drive.

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Long live the WRC

So you just add like half a litre to your sump of prewarmed oil? Then run for 2 mins?

can the same be done to the gearbox?

might consider it for both engine and gearbox for when i do the major at 200k

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98 gf8 Rip

What Tuna said, I did it to very my rattly WRX 6yrs ago then it sat for 4yrs untouched but now after 2yrs of use it still runs perfect, we just drained the old oil, put 5L of diesel in it then let it run for about 10min until it was up to temp giving it a very light rev every few min, the amount of gunk that came out was amazing.

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Beaten up old 98 Gen 2 Liberty, 13.0, stock V3 STI running gear.
07 Transit motor home
69 VF & 70 VG Valiants needing full restoration
Yamaha Zooma 50cc rocket hopefully going with the Transit.

Learn something every day - I always thought that was a old man's tale.

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[COLOR=Black]Liberty GT Spec B tuned 240 HP & 372 Nm at the hubs.[/COLOR] "Instead of banning high performance cars - ban low performance drivers"

Just diesel? Stuff. Didnt think diesel had lubricating properties to make it safe to run for 10mins!

Hmmm. Might try the diesel trick next service. Also make sure if you guys do put a flush/ diesel through it, to change your oil filter, and not do what some people I've seen do and just drop and refill the oil.. -_-