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What oil?

Posted: Mon Apr 26, 2010 10:07 am
by eoin27
Well shes burning a bit of oil. And leaking another bit. I'll get round to plugging the leak at some point but becasuse its only about 2-3 drops a day, I'm not too concerned. But the burning oil is concernig. If the car is driven at 80-100mph over 120 miles and a bit of hard acceleration in between (basically hard driving), it will burn about a litre over that distance. Which is awful!!! But I put in 10W40. I'm willing to put in much thicker oil now that the summer is approaching. Does anyone have any recommendations as I dont want to burn off the thinner stuff every week.

I've accepted that its an old car (engine wear wise) and it needs special treatment now

Re: What oil?

Posted: Mon Apr 26, 2010 10:27 am
by Welly
I'd be tempted to try some oil seal conditioner and maybe even some of that stop-smoke stuff.

But please oh please do so at your own judgement and risk (do some research first). I only say all this because if it was me and I'd got an engine burning oil then I'd be tempted to give these products a try on the basis that the engines not too healthy anyway etc.

A modern engine really shouldn't be burning oil like this. Bore wear is very rare these days and things like the big end bearings would let go first if there was a shortage of oil. I'd be looking more at valve stem seals etc. Maybe when the engine had the head work done they re-used the old seals instead of new ones? maybe even got them mixed up/wrong etc???

I don't think the engine will be happy with 20W/50 it's too thick really.

Re: What oil?

Posted: Mon Apr 26, 2010 10:36 am
by eoin27
Welly wrote:Maybe when the engine had the head work done they re-used the old seals instead of new ones?
Completely new head, Completely new seals. I can guarantee that much so I'm not thinking its the valves. It could be piston rings. Do you have links to any of the products you mentioned?

I did a little research online already and I am very surprised at the amount of larger (2l plus) petrol engines that burn oil. A guy with a 07 Audi A4 is burning 1 litre every 1k.

Ironic really, diesels are reffered to as oil burners, but neither of my HDi's burned any :lol: :lol:

Re: What oil?

Posted: Mon Apr 26, 2010 11:04 am
by sirwiggum
eoin27 wrote:
I did a little research online already and I am very surprised at the amount of larger (2l plus) petrol engines that burn oil. A guy with a 07 Audi A4 is burning 1 litre every 1k.
The Alfa twinspark engines burn a little bit of oil. It is expected that as a Twinspark owner you top up 1 litre every couple of months, checking the oil at least once a week.

Re: What oil?

Posted: Mon Apr 26, 2010 11:10 am
by Welly
Actually there are petrol engines out there which consume a lot of oil but I never associated this with Pug engines.

The VW 2.0 petrol likes oil, as do some Toyota VVT's...

Some would say the 1 ltr every 1000miles is 'within spec'.

The products I mentioned are the kind of thing you'd see in Halfords by people like Wynns etc...

Re: What oil?

Posted: Mon Apr 26, 2010 11:13 am
by eoin27
sirwiggum wrote:The Alfa twinspark engines burn a little bit of oil. It is expected that as a Twinspark owner you top up 1 litre every couple of months, checking the oil at least once a week.
Well if thats the case, I'm not too worried because I know under easy driving, the consumption is quite low, if any. But under hard acceleration, prepare to pay! I might chance some 10w50 for the summer and see how I get on. I'll buy a 5l bottle. That should do for a few months. Im just not used to oil consumption really
Welly wrote:The products I mentioned are the kind of thing you'd see in Halfords by people like Wynns etc...
I might try those products too Welly. If she drinks a bit of oil over time and I manage to find a cheap source to get more (rather than the €10.95 per litre at petrol stations) I should be ok. The rocker cover gasket was replaced so perhaps the sump plug can help me with the minor oil leak.