What oil is best for my ed30

[mstirlz05]

Hi folks, I have an edition 30 on 113k miles that is un tuned. Its always had vw servicing so the oil has always been castrol long life 5w30.
The consumption was excessive but within vw guidelines. Last week was the first time I took it to a specialist for a service and I mentioned the oil usage. They said they'd change the grade to 5w40. After the service I asked what oil was in and was informed its running on 10w40 triple qx.
I'm unsure whether this will be suitable after reading about recommended oils however there are so many conflicting arguments and I'm confused as to what grade a high mileage stock eddy should use. Or just go back to 5w30 and keep topping up.
If anyone could give me advice I'd appreciate it thanks

[Clarkj93]

5w40 millers nanodrive for me, oil consumption is almost nill since changing. Ko3 gti on stage 1 tune with a fair amount of track days.

I've noticed recently that a few people racing the tfsi motors using 10w50 or 10w60, can't quite remember which! Obviously those engines run under different circumstances though.

[shail]

I've had high oil consumption for the 8 or so years I've had my car.   Uses average of. 1l every 1200 miles.

Tried Castrol Edge 5w30, She'll Helix 5w40, Triple QX 10 w40.  All about the same.

Last oil change I used Miller's CTS nanodrive (as mentioned above) 5w40.  Since then oil consumption as more than halved.  Not topped it up yet.  It's used about 0.5l in around 2000 miles, but if need to check that.  Essentially it's much better since Miller's.

Other things that helped in the past - new PCV, new rocker cover.

[pudding]

Get the engine up to temperature, or after a longish run, let it idle for about 5-10 minutes, then mash the throttle down.  If it kicks out blue smoke, that is where your oil is going.  Valve guides and/or seals are shot.  Under normal driving conditions you don't notice the smoke as you don't generally idle for 10 mins or more, unless stuck in traffic.

If not guides and seals, it will be knackered piston rings, so get a compression check done to outrule that.  Worn turbo bearings can weep a bit of oil into the exhaust as well.

Mobil 1 5W50 is good for reducing consumption, and not a bad idea for engines past 150K anyway tbh.

[mstirlz05]

I've had high oil consumption for the 8 or so years I've had my car.   Uses average of. 1l every 1200 miles.

Tried Castrol Edge 5w30, She'll Helix 5w40, Triple QX 10 w40.  All about the same.

Last oil change I used Miller's CTS nanodrive (as mentioned above) 5w40.  Since then oil consumption as more than halved.  Not topped it up yet.  It's used about 0.5l in around 2000 miles, but if need to check that.  Essentially it's much better since Miller's.

Other things that helped in the past - new PCV, new rocker cover.

Thanks I'll look at changing the gasket. Is yours stock?

[mstirlz05]

Get the engine up to temperature, or after a longish run, let it idle for about 5-10 minutes, then mash the throttle down.  If it kicks out blue smoke, that is where your oil is going.  Valve guides and/or seals are shot.  Under normal driving conditions you don't notice the smoke as you don't generally idle for 10 mins or more, unless stuck in traffic.

If not guides and seals, it will be knackered piston rings, so get a compression check done to outrule that.  Worn turbo bearings can weep a bit of oil into the exhaust as well.

Mobil 1 5W50 is good for reducing consumption, and not a bad idea for engines past 150K anyway tbh.

Thanks for the advice
I've been keeping an eye out for smoke but I'll try that method. Compression test was carried out last month with no issues there. Suspecting it may be seals. My main issue is whether the new oil grade is suitable for my car with it being stock. Would 5w50 be too thick? I know how clued up you are on these so if yours was stock what grade would you be using?

[shail]

I've had high oil consumption for the 8 or so years I've had my car.   Uses average of. 1l every 1200 miles.

Tried Castrol Edge 5w30, She'll Helix 5w40, Triple QX 10 w40.  All about the same.

Last oil change I used Miller's CTS nanodrive (as mentioned above) 5w40.  Since then oil consumption as more than halved.  Not topped it up yet.  It's used about 0.5l in around 2000 miles, but if need to check that.  Essentially it's much better since Miller's.

Other things that helped in the past - new PCV, new rocker cover.

Thanks I'll look at changing the gasket. Is yours stock?

Yea it's stock.   I changed the whole rocker cover, not just the gasket.  The passages on the under side of the rocker had started to come apart, which meant the pcv system wasn't working as intended. 

[Lewo]

I use 5/40 Millers but quite a few use Quantum 5/40 which is cheaper.
Uses less oil than when using 5/30.

[pudding]

Get the engine up to temperature, or after a longish run, let it idle for about 5-10 minutes, then mash the throttle down.  If it kicks out blue smoke, that is where your oil is going.  Valve guides and/or seals are shot.  Under normal driving conditions you don't notice the smoke as you don't generally idle for 10 mins or more, unless stuck in traffic.

If not guides and seals, it will be knackered piston rings, so get a compression check done to outrule that.  Worn turbo bearings can weep a bit of oil into the exhaust as well.

Mobil 1 5W50 is good for reducing consumption, and not a bad idea for engines past 150K anyway tbh.

Thanks for the advice
I've been keeping an eye out for smoke but I'll try that method. Compression test was carried out last month with no issues there. Suspecting it may be seals. My main issue is whether the new oil grade is suitable for my car with it being stock. Would 5w50 be too thick? I know how clued up you are on these so if yours was stock what grade would you be using?

I've been using 0 or 5W40 since 75K miles (it's now on 176K). 5W30 as many others have found just gets consumed too quickly.

5W40 is the correct grade for stock GTIs on fixed (10K) servicing anyway.  5W30 is only for (variable) longlife servicing.

I have my doubts about the oil pump coping with thick oils like 5 or 10W50 and 10W60 in the long term, but old engines with sloppy bearing clearances would put less load on the pump anyway, so it might work out OK. 

[skkane]

Using Liqui Moli 10W60 on mine as previous owner swore by it, said not to use anything else. Pretty high mileage @ 172k miles. He said it doesn't use oil between changes but I will see for myself, currently on ~600miles since my 1st oil change on it.

[fsgti]

5w40 millers nanodrive for me, oil consumption is almost nill since changing. Ko3 gti on stage 1 tune with a fair amount of track days.

I've noticed recently that a few people racing the tfsi motors using 10w50 or 10w60, can't quite remember which! Obviously those engines run under different circumstances though.

Does the millers Nanodrive protect the engine as good seeing as it's main purpose is to maximise performance?
Thanks

[pudding]

It should do as it contains lots of slippery stuff, which is usually tungsten disulfide powder....... so you'll need to give the tub a darn good shake before you tip it into the engine.

You can actually buy it in raw form on ebay, if you want to turn a tub of £9.99 Amazon Basics 5W40 into a £60 tub of Millers Nano-Drive 

How much of said powder gets stopped by the oil filter remains to be seen, but in theory it should reduce HPFP follower wear.