Engine Flush!?

Oracle · 13 Apr 2006 at 13:22

I'm contemplating the Wynns stuff for this for my next oil change which i'll probably do over the weekend.

Anyone got any recommendations!?

In addition, i'm not draining the oil out of the sump as I have a special oil syphon pump which drains the oil through the dipstcik.

Thanks

merlin · 13 Apr 2006 at 13:27

No need. Unless of course the oil has been in there since 1984.

agw_01 · 13 Apr 2006 at 13:33

Running diesel oil through a petrol engine for a few thousand miles is supposed to clean up all the gunk and sludge.

A guy on Rovertech did a writeup including a few pictures and when he took the sump off two similar cars with similar histories, the one which had had diesel oil in previously was very clean!

I ran some Castrol GTX Diesel oil through the 214 for 4000 miles before switching to Castrol GTX Magnatec. Didn't do it any harm

Going to replace the sump gasket on the 220 and then drop some diesel oil through.

Oracle · 13 Apr 2006 at 13:40

Ahh, I have a diesel, so do i run petrol oil through!?

LOL

Oracle · 13 Apr 2006 at 13:41

merlin said:
No need. Unless of course the oil has been in there since 1984.

No, but I thought it would be sensible to not mix an oil (that I dont know) with my Mobil 1 TD stuff

Surely its good to remove all contaminents!?

agw_01 · 13 Apr 2006 at 13:42

ROFL

No

There's no need to run petrol oil through. Diesel oil contains much stronger detergents (dirtier combustion process) than petrol oil, so running petrol oil in a diesel won't do the engine any good.

As for changing the oil, run the engine for 20 minutes or so to get it up to temperature, and then drain it through the sump. The oil will be very runny so you'll get most of out. Whatever's left won't affect the new oil apart from possibly changing its colour.

I wouldn't try and drain the oil through the dipstick hole... it'll take forever and won't remove half as much oil as through the sump plug.

Oracle · 13 Apr 2006 at 13:47

No its cool, its a special device to reach deep down into the sump and suck the oil up through hoses. takes about 4 minutes and saves a lot of hassle.

Lashout_UK · 13 Apr 2006 at 13:49

Yea, it's also usless as it leaves all the crud behind that blocks your oilways, especially when you pour a load of fresh oil in.

burns · 13 Apr 2006 at 13:51

I've always been told not to use that flushing stuff (can't remember who by) as it can make the engine leak if it flushes out crud from around the seals that's keeping them sealed. I'd agree about the oil sucker thing as well, just drain it the proper way.

Bill101 · 13 Apr 2006 at 13:52

check to see if the engine is sutable for using a flushing agent,some recommend that you do not as it tends to affect gaskets on some models.There should not be too much gunk in there if it's had regular changes as diesels like their oil changed frequently

merlin · 13 Apr 2006 at 13:52

Honestly, just dont bother - drain the oil patiently and throw the new stuff in.

It'll be fine.

Oracle · 13 Apr 2006 at 13:53

Well, its never done me any harm, but then i do change my oil every 6k!

Gaijin · 13 Apr 2006 at 14:36

Just drain the oil as per normal, then get a pressure washer with a cillit bang mixer, with a tub of caustic soda and a touch of jif, and whack it in the oil filler cap. Leave for half an hour and then leave to dry. Your engine will now be cook-on clean!

I hold no responsibility for any failings observed using the above method

Oracle · 13 Apr 2006 at 15:07

What!???

So the french fries in the cooked oil wont help then!?

(in the words of Jack Bauer) "Dammit"

Third Opinion · 13 Apr 2006 at 20:18

Engine flush is for older engines that have gunked up. Please don't put this through an engine that has been fairly regularly serviced as it is likely to cause more harm than good.

Use it on an engine that has been obvisously neglected as a last resort before it blows up and needs a rebuild.

Stonedofmoo · 13 Apr 2006 at 20:31

Just dont use it at all

nutcase · 14 Apr 2006 at 09:57

An oil sucker is only useful on gearboxes that don't have a drain, or engines that the drain is seized (and only temporary until you can get it fixed. A drain plug is put in the place to get the most oil out. Use it. And replace the sealing washer.