Esso Super Unleaded change.
Discussion
Prinny said:
This is good news. Been that way on the continent for a while - certainly in NL. I will say that the M6 really liked it, there was a top-end zip that’s never been there with v-power. Not as good as the Aral 102 in Germany mind...
The smell of Aral 102 is something to behold.Chromegrill said:
And they take Nectar cards too! Vpower has never quite felt the same since Shell stopped their reward scheme and came up with an app that doesn't work on my phone.
+1. The new app is dog turd - gives you vouchers that you can't redeem without walking in to pay. The whole point is that you can pay on your phone..TheAngryDog said:
Esso are about 10p per litre more expensive than Tesco Momentum. Think I'll be sticking with Momentum.
Not necessarily. At around £1.10 per litre versus £1.00 it's 10% more expensive so what you need to ask is whether you get 10% more miles per tank on Esso versus Tesco. If you do, you will find they cost exactly the same per mile in which case which one is better for your engine or drives better?Chromegrill said:
TheAngryDog said:
Esso are about 10p per litre more expensive than Tesco Momentum. Think I'll be sticking with Momentum.
Not necessarily. At around £1.10 per litre versus £1.00 it's 10% more expensive so what you need to ask is whether you get 10% more miles per tank on Esso versus Tesco. If you do, you will find they cost exactly the same per mile in which case which one is better for your engine or drives better?jamoor said:
Is there any production cars sold here that need such petrol? The only car I've ever had was a swift sport that recommended 97 all the others have been 95.
My Porsche 997 is recommended to run on 98, thus Esso at 97 is below spec. Equally it can be run on 95 but the one time I had to (no super) it ran noticeably rougher.I had another car that also needed to be run on 98, either the 4200 or Chimaera. Can't remember which.
Jimmy Recard said:
jamoor said:
Is there any production cars sold here that need such petrol? The only car I've ever had was a swift sport that recommended 97 all the others have been 95.
The handbook for mine says it’ll be a bit more powerful with 98 but 95 is fine My Insignia's engine rpms seem to climb faster and smoother with Tesco 99 than with 95 and the car seems happier to pull higher gears at slightly lower rpms. It might not make much more horsepower (I've heard 5-10%) but it seems to climb the power curve more quickly.
Fuel consumption slightly improves but not enough to cover the extra cost per litre, so the cost per mile is slightly more with 99 than 95.
I often wonder why Vauxhall specified 98 octane for the Insignia 2.8 (various outputs from 250 in Vectra to 320 in Insignia) but they only specify 95 octane for the 2.0T 250 which is even more highly boosted (more hp per litre) and ought to benefit more from higher octane.
Yet they specify 98 in the 1.6T 200 which is comparable hp litre to the 2.0T 250.
I would have thought that all modern turbocharged engines could be mapped to run better on 98 compared to 95.
Ron99 said:
Jimmy Recard said:
jamoor said:
Is there any production cars sold here that need such petrol? The only car I've ever had was a swift sport that recommended 97 all the others have been 95.
The handbook for mine says it’ll be a bit more powerful with 98 but 95 is fine My Insignia's engine rpms seem to climb faster and smoother with Tesco 99 than with 95 and the car seems happier to pull higher gears at slightly lower rpms. It might not make much more horsepower (I've heard 5-10%) but it seems to climb the power curve more quickly.
Fuel consumption slightly improves but not enough to cover the extra cost per litre, so the cost per mile is slightly more with 99 than 95.
I often wonder why Vauxhall specified 98 octane for the Insignia 2.8 (various outputs from 250 in Vectra to 320 in Insignia) but they only specify 95 octane for the 2.0T 250 which is even more highly boosted (more hp per litre) and ought to benefit more from higher octane.
Yet they specify 98 in the 1.6T 200 which is comparable hp litre to the 2.0T 250.
I would have thought that all modern turbocharged engines could be mapped to run better on 98 compared to 95.
ETA "ran like poo" is a bit unspecific... I found that with a warm engine, on 95-RON, flooring it from low revs would result in hesitation. No such problem on 98-RON, or with a more sympathetic application of throttle.
Ron numbers don't mean that much. Chances are this is part of the move from E5 to E10. Ethanol increases the RON far more than it does the MON, this means it is may not be more stable at high air intake temperatures than 97 RON E5 fuel. Result will likely be slightly more power for some cars, but anything with a high specific output will benefit less maybe will even lose power, particularly when driven in anger or after sitting heat soaking in traffic.
Chromegrill said:
TheAngryDog said:
Esso are about 10p per litre more expensive than Tesco Momentum. Think I'll be sticking with Momentum.
Not necessarily. At around £1.10 per litre versus £1.00 it's 10% more expensive so what you need to ask is whether you get 10% more miles per tank on Esso versus Tesco. If you do, you will find they cost exactly the same per mile in which case which one is better for your engine or drives better?Gassing Station | General Gassing | Top of Page | What's New | My Stuff