996TT - filling up

[Craigbruce]

I'm certain this must have come up before, but a search on the forum draws a blank - so apologies in advance if I offend anyones sensibilities by re-asking:

Just picked up a 2005 996 Turbo S Cab. on Saturday - do I need to keep it fed on Premium Unleaded, or will it drink regular unleaded during day to day use without ill effect ?

My previous car - a 2001 996 C4 Cab - ran very happily on regular unleaded, and I was advised that regular was fine by the OPC at the point of collection. The question didn't arise with my new car though as I was too keen to hit the road.

It certainly looks as though I'll be going through more petrol with this car, early scores on the trip computer suggest the possibility of 15mpg compared with 21-24mpg in the old car.

[nbetts]

Any grade of unleaded UK fuel will do. It obviously prefers the higher octane stuff though.

[kayc]

Craigbruce said:

I'm certain this must have come up before, but a search on the forum draws a blank - so apologies in advance if I offend anyones sensibilities by re-asking:

Just picked up a 2005 996 Turbo S Cab. on Saturday - do I need to keep it fed on Premium Unleaded, or will it drink regular unleaded during day to day use without ill effect ?

My previous car - a 2001 996 C4 Cab - ran very happily on regular unleaded, and I was advised that regular was fine by the OPC at the point of collection. The question didn't arise with my new car though as I was too keen to hit the road.

It certainly looks as though I'll be going through more petrol with this car, early scores on the trip computer suggest the possibility of 15mpg compared with 21-24mpg in the old car.

You can use normal unleaded,but v-power is the best to use on a turb imo.

[dazren]

I think the owners manual recommends 98 RON fuel, which isn't always available, so I run my car on a variety of super unleaded fuels which range from 97 to 99 RON. Never tried it on 95, although the engine has knock sensors which should adjust for the lower grade of fuel.

[willdew]

Everything likes higher octane.
However, our std octane is of better quality and consistency than in many other countries, so you'll get no complaints from any modern car on the normal stuff.

I get about 10% extra miles out of a tank of Tesco's 99 RON, for only 6% extra price, so it's actually cheaper for me to run on the higher octane. Hence, putting premium fuels in is a no brainer.

[ballcock]

One of the reasons I'd be slow to buy a turbo and use it in Ireland is the scarcity of anything over 95..

Now I know I'm asking for a handbagging from Casey but I've heard from a fairly high authority (no names!!) that the tt NEEDS 97+ due to increased pressure in the cylinders (among other things) ..

Has anyone here been running 95 on their tt consistently?

[sleep envy]

Can't you just chuck in an octane booster into every tank?

[kayc]

ballcock said:

One of the reasons I'd be slow to buy a turbo and use it in Ireland is the scarcity of anything over 95..

Now I know I'm asking for a handbagging from Casey but I've heard from a fairly high authority (no names!!) that the tt NEEDS 97+ due to increased pressure in the cylinders (among other things) ..

Has anyone here been running 95 on their tt consistently?

Of course the tt needs high octane fuel..its a high performance engine...i think the normally aspirated cars run on nearly anything..

[nervous]

sleep envy said:

Can't you just chuck in an octane booster into every tank?

gets pricey though chum, used to have to do that with my imported scooby. at least an extra 6 quid a tank and youve got keep a hearty supply of the stuff with you at all times.

[ballcock]

sleep envy said:

Can't you just chuck in an octane booster into every tank?

Looked into that .. And bugged folk here about it too ... There's no guarantees that a bottle will raise the rating by even one point , and they have some side effects .. Magnesium coatings on the cylinders was one that was quoted .. I really wouldn't have to rely on them long term.

[ballcock]

kayc said:

ballcock said:

One of the reasons I'd be slow to buy a turbo and use it in Ireland is the scarcity of anything over 95..

Now I know I'm asking for a handbagging from Casey but I've heard from a fairly high authority (no names!!) that the tt NEEDS 97+ due to increased pressure in the cylinders (among other things) ..

Has anyone here been running 95 on their tt consistently?

Of course the tt needs high octane fuel..its a high performance engine...i think the normally aspirated cars run on nearly anything..

PHEW!! .. Handbagging averted .....

















this time

[nick_968]

95 will do fine if you cant get 97 or 98, fuel economy should improve a little on the better stuff but dont worry yourself if you cant get it as it will do no damage to the engine.

[kayc]

ballcock said:

kayc said:

ballcock said:

One of the reasons I'd be slow to buy a turbo and use it in Ireland is the scarcity of anything over 95..

Now I know I'm asking for a handbagging from Casey but I've heard from a fairly high authority (no names!!) that the tt NEEDS 97+ due to increased pressure in the cylinders (among other things) ..

Has anyone here been running 95 on their tt consistently?

Of course the tt needs high octane fuel..its a high performance engine...i think the normally aspirated cars run on nearly anything..

PHEW!! .. Handbagging averted .....

















this time

Im impressed,but not surprised that you missed the sarcasm

[drhildr]

The car will run on standard unleaded if you have to - but you and the car will both notice the difference if you use Shell VPower or Tesco 99. BP 97 and Texaco 97 are next best but if you go to anything lower I would chuck in a can of good quality octane booster - but not too often. I keep some in the car in case of emergencies. Splashing out on some BP102 will open your eyes as well!

[ballcock]

kayc said:

ballcock said:

kayc said:

ballcock said:

One of the reasons I'd be slow to buy a turbo and use it in Ireland is the scarcity of anything over 95..

Now I know I'm asking for a handbagging from Casey but I've heard from a fairly high authority (no names!!) that the tt NEEDS 97+ due to increased pressure in the cylinders (among other things) ..

Has anyone here been running 95 on their tt consistently?

Of course the tt needs high octane fuel..its a high performance engine...i think the normally aspirated cars run on nearly anything..

PHEW!! .. Handbagging averted .....

















this time

Im impressed,but not surprised that you missed the sarcasm

Ah no .. I caught that .. Just too scared to tackle you !! (and probably agree with you more than I'd care to admit , too!)

[kiko]

How can anyone who has a 996 Turbo use 95 to save a few quid?

[Adam B]

kiko said:

How can anyone who has a 996 Turbo use 95 to save a few quid?

you beat me to it, spend 80k (I guess) on a turbo S and skimp on petrol against the recommendations of Porsche

mind you maybe its by watching the pennies that you can afford a turbo S and I cannot

[996tt_stevo]

kiko said:

How can anyone who has a 996 Turbo use 95 to save a few quid?

lol, same

[ttturbo]

I run a TT in Ireland

No problems except for guys in Lancers racing ya

[nick_968]

It always amazes me the misinterpretation that occurs on these kind of threads! Its not about skimping on fuel costs when you can afford a TT. Its about knowing what you can get away with if super is not available!! Also the TT will advance or retard the timing accordingly for whatever fuel you choose to use via knock sensing, there is no requirement to use super due to increased pressure in the cylinders otherwise loads would have gone bang by now. Take Lonmans car for example, this has sat at 200+ mph for extended periods of time, something very few cars have done, and the GT2 being in a higher state of tune than a TT and it didnt go bang or suffer any decrease in performance, all this whilst running on Yankee petrol which in many cases is not as good as our 95. Porsche would not release a car that couldnt run safely on 95. They simply recommend that for optimum performance you use super.