Petrol
- Thread starter Bondy
- Start date
Roscobbc
Moderator
I'm sure a C5 owner will come on here soon and advise you. Me? (and other earlier Corvette owners) perhaps will often use Tesco's Momentum Super unleaded 99.
Yes, Shell and BP will tell you about their special clean super unleaded fuels.......but they all now have ethanol content (as does Tesco's Momentum 99) - but at least Tesco is generally a little cheaper with a higher octane rating.
Yes, Shell and BP will tell you about their special clean super unleaded fuels.......but they all now have ethanol content (as does Tesco's Momentum 99) - but at least Tesco is generally a little cheaper with a higher octane rating.
Invetterate
CCCUK Member
Congrats on your first Vette! Hope you have many happy miles together!!
The car will run fine on standard unleaded as stated, but the ECU can detect higher octane fuel and switches to a different ignition/fuelling map. It will thus run better on E5 and if, as suggested, you use Tesco Momentum 99 [which is the highest octane fuel normally available in the UK], it is little more expensive than a big name 95 octane. The additive package for the 99 is also one of the best in the business and is really good at preventing problems liked clogged injectors. It's your car and your money, but I learned a lot of this when my car was remapped by a guy who has been remapping LS engines for the best part of 30 years and have used Tesco 99 ever since.
The car will run fine on standard unleaded as stated, but the ECU can detect higher octane fuel and switches to a different ignition/fuelling map. It will thus run better on E5 and if, as suggested, you use Tesco Momentum 99 [which is the highest octane fuel normally available in the UK], it is little more expensive than a big name 95 octane. The additive package for the 99 is also one of the best in the business and is really good at preventing problems liked clogged injectors. It's your car and your money, but I learned a lot of this when my car was remapped by a guy who has been remapping LS engines for the best part of 30 years and have used Tesco 99 ever since.
Thanks to you all for your petrol views and as with most things it seems we all have our own choice to make but at least I am now better educated by your responses. Cheers.
Roscobbc
Moderator
Thing is........not all areas in the UK are alike relating to ethanol content in fuel. Some of the major names have, perhaps the full prescribed amount.......others less. If you want to be more specific there are Youtubers who take samples from local filling stations and test for percentage content. It's more of a 'thing' for the older cars really.
CaptainK
Administrator
As above E5 and E10 etc doesn't means it has to have exactly 5% or 10% ethanol etc. It means "up to" that amount, but not over the labelled number, meaning it can actually have 0% ethanol in it, and for example E10 can NOT have over 10% ethanol in it. Indeed Esso for a while was selling their E5 labelled petrol with actually 0% ethanol in it. It was quite handy.
Roscobbc
Moderator
If one is really concerned about the content of the fuel being used and not convinced that petrol retailers are being informative of its Ethanol content etc - there is always the option of buying drums of certified Sunoco fuel from Anglo American Oil (Anglo American Oil Company | Motorsport Fuels & Oils UK) in a multitude of leaded and unleaded octane ratings plus 'sustainable'.............but if already unhappy about the current £1-60 to £1-70 and higher pump gas prices........your eyes will water at the typical £100+ price for a 25 litre drum.