Engine flush - how..?

[Fastra]

Changing the Astras oil at weekend and want to shove some engine flush in it, but how is it used?
Do you just change the oil as normal and add the flush and thats it, or do you leave it in for a few hundred miles and then change the oil again?

[Fastra]

Defcon5 said:

Firstly, why are you wanting to use an engine flush? Sometimes they do more harm than good

Its been burning oil recently so I was thinking this would clean anything out that might need cleaning.
I put some Wynns Stop Smoke in a few weeks ago and this made quite a difference, I'm also changing the oil make from Halfords to Vauxhalls own just to see if this helps too.

[Fastra]

V88Dicky said:

Read the instructions mate. IIRC you add the flush to your old oil then run the car up to temperature, then change the oil as normal.

Not looked at any yet and thought the instruction may help though.

[Fastra]

Just had a read of this:

http://www.honestjohn.co.uk/forum/post/index.htm?t...

and it seems to follow Defcon5s thinking - causes more harm than good.

[Fastra]

mini me said:

I seriously wouldnt bother if i was you. It wont do anything but hurt your engine. think about it and ask yourself, why would anyone want to flush all the oil out of their bearings/surfaces and then run the engine with effectively no/very little lubrication. it will do nothing but harm.

Thanks mate.
Its always had regular oil changes so I'll think I'll leave well(ish) alone.

[Fastra]

I was actually thinking of the emission test as well really - its the MOT in a few weeks, so was hoping to try and get it as 'clean' as possible.

[Fastra]

E30M3SE said:

FYI. If you look on the back of a tin of the Wynn's Engine Flush it says on it ' not recommended for engines that have covered more than 75,000 miles'.

Thats it then - definitely not doing it!



Cheers lads!

[Fastra]

Darkslider said:

Engine flush doesn't 'knacker' your engine, it might just highlight if your engine is already knackered.

I think thats the main point really!
My engines already worn in some place (either piston rings or valve seals), so I guess flush might dislodge any sludge that's actually doing any 'sealing' - if you get what I mean.

[Fastra]

Darkslider said:

Fastra said:

Darkslider said:

Engine flush doesn't 'knacker' your engine, it might just highlight if your engine is already knackered.

I think thats the main point really!
My engines already worn in some place (either piston rings or valve seals), so I guess flush might dislodge any sludge that's actually doing any 'sealing' - if you get what I mean.

Well if you think your engine is actually about to die an oil change is the least of your worries!
.

No, its not that bad yet. Like I said the Stop Smoke stuff made a lot of difference. Plus I put some Redex through the petrol which also seemed to help.
Eventually, though, I will have to look at something more permanent and I've been looking at replacement engines on ebay which are going in the region of £300-400. Unfortunately engines from the later Mk5 won't fit due to their Canbus electrical system.. ...and these are even cheaper and obviously more readily available.

Edited by Fastra on Friday 24th April 11:22

[Fastra]

Darkslider said:

Fastra said:

Darkslider said:

Fastra said:

Darkslider said:

Engine flush doesn't 'knacker' your engine, it might just highlight if your engine is already knackered.

I think thats the main point really!
My engines already worn in some place (either piston rings or valve seals), so I guess flush might dislodge any sludge that's actually doing any 'sealing' - if you get what I mean.

Well if you think your engine is actually about to die an oil change is the least of your worries!
.

No, its not that bad yet. Like I said the Stop Smoke stuff made a lot of difference. Plus I put some Redex through the petrol which also seemed to help.
Eventually, though, I will have to look at something more permanent and I've been looking at replacement engines on ebay which are going in the region of £300-400. Unfortunately engines from the later Mk5 won't fit due to their Canbus electrical system.. ...and these are even cheaper and obviously more readily available.

Edited by Fastra on Friday 24th April 11:22

You know it makes sense.

If I sell the kids, the house and, possibly, my guitar......

[Fastra]

jatinder said:

What grade of oil are you using?

Try a different brand of oil, my dads clio DCi has done 175,000 miles, always used a bit of oil.

Changed to a different brand (Carlube IIRC) hasn't used a drop at all.

Used the same on my mums golf GTi doesn't use any oil now?

Have been using Halfords semi-synth 10-40 (which now I come to think, it does seem to have been consumed rather quickly..!) - so I've just got some of Vauxhalls own.

So it'll be interesting to see the difference.

Edited by Fastra on Friday 24th April 16:34