Fuel Guide Diesel, Petrol, Race fuel, Ethanol & blends of E85 E10 E5 E15

What do octanes and E numbers mean?

With all the fuels grades and ratings around it can be a challenge to get the best fuel for your engine.

Industry insiders explain the fuels in our guides and articles and help you to make an informed decision when selecting fuel.

We explore the many different types of fuel and grades on the market, suggestions advantages and disadvantages for each, and where possible we outline options to convert engines to run on them.

We include Octane and Cetane explanations and what the E numbers mean and if they can harm your engine.

We also discuss Methanol and Nitromethane fuels and look at race fuels.

Hypermiling

Follow our Hypermiling techniques to save substantial amounts of fuel, we look at driving techniques, car care and some mods that can all improve your fuel consumption, saving you a massive 20-50% of your fuel usage!


Tracking your MPG

We look at why drivers should regularly calculate their MPG and the benefits that come from tracking your cars fuel economy over a few tank fulls of fuel. See our tips on MPG calculating and why it matters in this article.


Fuel Guide

We look at race fuels, street fuels, discuss lead, 2 stroke fuel and everything in between. If there is something you need to know about fuel and which one would be best for you then it’s in this article.


E85 Ethanol gas fuel

Read up on Ethanol E85 gas fuel find out what it is, what octane which cars can happily run it and how to convert a car to use it. We also look at the advantages and disadvantages of E85 fuel.

E85 is a term used to refer to rich ethanol-gas fuel blends that contain a 51%-83% ethanol ratio depending on the season and geography of use.




Please watch this video on our new YouTube channel.

Member Benefits

Join our forum today and benefit from over 300,000 posts on tuning styling and friendly car banter.

You will also have full access to the modifed car gallery, project car updates and exclusive member only areas.

(All car owners of all ages and from all countries are welcome).


BMW 335i - 2021 COTY

We gave the BMW 335i our coveted car of the year award, read more about this awesome car and see why 335i Tuning Guide

Tips for N54 Tuning

Tips for N55 Tuning

Popular articles

Tuning Diesels
Remapping ECU
Double Clutch
Induction Kits
Customize a car
Chip tuning
Modded Car insurance
Track day insurance cover
Remap Diesels
Work out your MPG
Cleaning a DPF
Forza tuning


Vernier Pulleys

Vernier pulleys
Read more...

Induction Kits

Best cold air intake induction kits
Read more...

Performance Clutches

Clutch tuning: performance clutch modifications and triple plate clutches setup
Read more...

Performance Tyres

Tyres and tread patterns for High performance cars
Read more...

Turbo Faq

Turbos Explained
Read more...

Spray Art2

Stunning sprayed art on car body panels
Read more...

Flip Paint

Getting a flip paint effect
Read more...

Car Mats

Tailored fitted custom and off the shelf car mats.
Read more...

Single Wiper

Conversion to a single wiper
Read more...

MPG Calculator

MPG calculator UK miles per Gallon - calculate MPG and save fuel
Read more...