2.0 turbo on super unleaded?

[daviewonder]

Hi

I got my 2.0 turbo on the road the other day and was really impressed by how well it went, now 1 week later and it's not seeming quite as impressive. Now either I've got used to the power or it's because I'm now using regular unleaded when before I was using super unleaded.

Does anyone feel any difference between using super and regular? Could this be the cause of the car not feeling as nippy?

Cheers, Dave.

[leehdi]

Probably placebo affect to be honest. Super doesn't do that much apart from keep the injectors cleaner.

[RayneR]

Yeah, i do feel you, when i changed my MAF it looked like i had a new car, but after some days that feeling went away and it looks the same boring car that doesn't acel that much ... am i ill ? lolol

[Welly]

Super Unleaded has a higher Octane rating and lets the car run advanced ignition (where it would have to retard ignition on Unleaded to stop pinking) so generally the car should feel a bit more lively with better throttle response.

A test was run once on a Subaru 2.0 turbo and ran approx 20 bhp more on V-Power but this is an extreme example and 'lesser' cars ran 2 to 8 bhp more.

Don't discount the small benefits just yet though as Super Unleaded does guard against pinking/knock and can pay for itself with better MPG's.

[GTXJez]

totally agree with teh last post - i have a rare 2.016v HPi Engine and it does pink a bit on unleaded, much better of VPower, but economy not much improved.

[daviewonder]

Cheers for the replies. I'll give it a go on super and see if it performs any better, won't be just yet though as I'm driving sensibly to see how many mpg I get. Interesting about that Scooby though

[Hangar18]

I found that momentum (which is allegedly 99 RON) does increase power- as for fuel economy- I haven't quite worked out how to operate the throttle unless I work by the rules of boolean logic. On or Off...

[Hangar18]

Did a comparison- BP super unleaded which is 97er against total 95er (which was fittingly total crap in comparison)

The ass-against-seat dynamo read a good inch wider on the grin-width-scale

So THERE

[ally406]

There are a lot of different opinions on Super, but truth be told it entirely depends on the engine. Turbo engines tend to benefit a lot more, but primarily torque is improved rather than bhp. A lot of other factors come into play as well, particuarly outside air temperature. On a hot day the engine may feel a lot more reluctant.

[RayneR]

i feel a lot of difference adding crapy diesel ( which is from the supermarket usually) and the Ultra extreme diesel which is more expensive ... with the ultimate diesel i feel the car is more smooth and it gives more power to him ...