What is Low Fuel Motorsport? How It Works With ACC

Low Fuel Motorsport (LFM) has integrated an iRacing style license progression and organised events into ACC and rFactor 2. In this guide, we look at exactly how LFM works.

Discover the best free F1 24 car setups for all tracks, including race and time trial setups.
Low Fuel Motorport How it works

Disclaimer: Some of the links on this page may be affiliate links. We earn a commission from any sale after clicking an affiliate link. Find out more.

Get the latest sim racing guides and car setups each week by subscribing to our newsletter.

Low Fuel Motorsport has entered the realm of challenging iRacing for the top spot of being the premiere online sim racing platform. However, LFM goes about things in a very different way to iRacing, especially considering that LFM works directly with ACC and rFactor 2.

In this guide, I’ll run through exactly how Low Fuel Motorsport works with ACC and rFactor 2. I’ll also show you how you can sign up, gain your LFM license and start competing in weekly online races to improve your Elo and earn licenses.

What is LFM (Low Fuel Motorsport)

Let’s start right at the beginning with the number one question, what is LFM? Low Fuel Motorsport is a sim racing platform, powered by the sim racing community. It offers sim racers who enjoy racing Assetto Corsa Competizione and rFactor 2 a full and comprehensive license and rating system, similar to that of iRacing.

Sim racers can compete in different seasons, cups and competitions against other sim racers while building their Elo and safety rating. Your Elo rating is essentially your overall speed rating and improves as you finish races in better positions. As you join LFM races, your Elo rating will divide the field of cars into splits which means you’ll likely be racing other sim racers who have similar Elo ratings to yourself.

Every official race you participate in will affect your Elo and safety rating, which will in turn affect which LFM license level you are in. You can be promoted and demoted across licenses in a very similar way to how iRacing operates.

The big difference is that LFM utilises both Assetto Corsa Competizione and rFactor 2 as their sim of choice. On top of this, LFM is completely free to use, doing away with the ongoing cost of an iRacing membership.

How LFM works

So I have just touched on the outline of how LFM works, but let’s jump into some specifics. LFM is a platform that is aimed to give some additional structure to competing online in titles such as ACC and rFactor 2. It serves to give sim racers a platform to track their progress and easily compete against sim racers of a similar skill level.

LFM Race Events

How LFM works with ACC

Low Fuel Motorsport works seamlessly with Assetto Corsa Competizione by hosting private servers. You can join sessions by searching for specific servers through ACC’s online platform and gaining access with a passcode from LFM.

All results from each race session are recorded directly into LFM without any manual input needed from the driver. After each session, you can quickly see your progress and results from that session as well as track your progress during a season to see how you’re comparing to other sim racers.

This allows drivers to compete across structured race series and seasons without any hassle of the typical management that comes alongside online championships in ACC. It gives you something to work towards, for example, improving your championship standing, improving your Elo or progressing to the next license.

Can you use LFM with consoles?

Unfortunately, LFM doesn’t work with consoles and is only compatible with ACC and rFactor 2 on PC. We don’t know if this will change at a later date or is in LFM’s plans. However, for the moment, the official LFM website states that there are no plans to bring LFM races to Xbox or PlayStation.

How to get started with LFM and ACC

Getting started with Low Fuel Motorsport for Assetto Corsa Competizione is a very easy and painless experience. You can create your account in just a few simple steps. After this, you can attempt to earn your LFM license via the license test. And once you complete the license test, you will be free to start racing in the rookie series online. I’ll detail the full process of signing up and earning your LFM license with ACC below.

Is LFM free?

One of the big differentiators between Low Fuel Motorsport and iRacing is that LFM is completely free to use. There is currently no payment required to create an account, and no subscription to use their service. As long as you have ACC on PC, have a safety rating in ACC of at least 80, and have completed the license test, you will be able to join organised race events.

How to sign up

Signing up to Low Fuel Motorsport is a relatively easy affair. The platform is completely free, and you just need to link your Steam account during the sign up process.

You will be required to enter a few details including your first and last name and choose an avatar. It is highly recommended that you use your real name, much like you have to in iRacing. From there you will be ready to attempt to earn your Low Fuel Motorsport license. Below is a step-by-step guide to getting started with LFM.

  1. Create an account: Go to the LFM website. Click on the latest season in the main menu. This will take you to a Steam sign up page where you need to either log in or link your Steam account to register an LFM account.
  2. Earn an LFM license: Once logged into LFM, you will be notified that you don’t have a license. Click the prompt to be taken to the license test page. This page gives you instructions on how to gain an LFM license.
  3. Participate in LFM license test: To start the license test, go to the multiplayer section of ACC, search for the LFM server by typing “lowfuel” into the server filter bar. Then select the license test server and join using the password on the LFM website.
  4. Complete a hotstint: Once you’ve joined the server, you need to complete a 7 lap hotstint. You must complete 7 consecutive laps without causing an invalid lap. And you must beat the maximum lap time which is recorded as an average of your first 7 valid laps. You can see in the image below that the target time for the Hungaroring license test is 1:49.319.
  5. Activate license: Once you’ve completed your 7 lap hotstint and averaged faster lap times than the maximum time target, you can quite the session and wait for ACC to write the server log which is an automatic process. Then head over to the LFM website to see your results. If your average lap time was faster, you will be given your LFM license automatically.
How to gain a Low Fuel Motorsport license

How to earn your LFM license

You can earn your ACC LFM license by following the steps above. This is the very first step on your journey after signing up for an LFM account. Gaining a license will allow you to start competing against other sim racers in organised races.

What you need to earn an LFM license

There are a few criteria that you need to meet before you can gain your license. The first is that you need to have Assetto Corsa Competizione installed on your PC, and your Steam account linked to LFM. And most importantly, you need to have a minimum safety rating in ACC of SA 80.

Achieving this safety rating in ACC is relatively easy to do, but it is a vital part of earning an ACC LFM license. You can improve your safety rating by competing against other cars in Assetto Corsa Competizione and by driving safely. Your safety rating will increase across all game modes as long as you drive safely without crashing into other cars or going off track.

Read our guide on how to increase your safety rating in ACC for tips on how to earn an SA of 80 quickly.

ACC LFM license test

Once you have an SA of 80 in ACC, you can then attempt the LFM license test. This test consists of you driving a hotstint of 7 valid laps. Then, the average lap time of those 7 laps will be calculated, and it must be faster than 107% of the lap record of the license track.

Currently, the license track is the Misano in ACC but the track changes regularly. This means that to earn your license in LFM, you need to lap on average faster than 107% of the lap record which is currently 1:31.895. So 107% would mean you need an average lap time faster than 1:38.328.

Subscribe To Our Newsletter!

Get the latest sim racing guides and car setups each week by signing up to our newsletter.

The license hotstint is conducted on a private Low Fuel Motorsport server, which is where you will practice and attempt your hotstint. You can gain access to this server by using the server password that is found on LFM’s website.

As soon as you complete a 7 lap hotstint with a faster average lap time than 107%, you will earn your Rookie license and can start competing in races online. The license unlocks instantly as soon as the ACC servers upload your session results, so you will be able to start racing in the ACC LFM rookie league right away.

LFM vs iRacing: Licenses, Safety Rating

Low Fuel Motorsport for Assetto Corsa Competizione takes a lot of inspiration from how iRacing operates but it does away with the cost involved with running an iRacing season making it a much more accessible form of structured sim racing competition.

The similarities between LFM and iRacing

Low Fuel Motorsport shares a lot of similarities with iRacing, and you can see the iRacing inspiration throughout LFM. LFM utilises a similar rating system (Elo) to rank your performances and dictate your progression through the licenses. There is a safety rating and an Elo rating which rate both your safety on track and your overall speed and skill respectively.

You’ll find license classes from Rookie through to Alien which are achieved by meeting the required safety rating, Elo rating and minimum completed races criteria.

On top of this, races are hosted on private servers with specific requirements such as pit stops, and pre-defined weather conditions, and races are hosted every hour. This allows sim racers across the globe to always find race sessions that are available to join.

Safety Rating

The safety rating in LFM is very similar to the one found in both Assetto Corsa Competizione and iRacing. The LFM safety rating is completely independent of the SA found in ACC. LFM’s safety rating is only affected by races that are run via LFM. Therefore it will be different from the SA found in ACC.

The LFM safety rating spans from 1.00 up to 9.99, with the higher figure being better. Every driver will start with a safety rating of 2.50 once they have gained their LFM license.

Then, after each race is completed via LFM, the safety rating will either increase or decrease based on the on track safety. The safety rating gain per race is capped at 0.30 SR, with a bonus 0.10 SR available if the race is completed with zero incidents. On the flip side, a driver can lose up to 0.50 SR if they race recklessly and rack up a high number of incidents.

Incident points are calculated in a similar way to how iRacing distributes its incident points, although there are fewer tiers on LFM.

  • 4 Incident points are given for each contact that damages your car (with both walls and other cars)
  • 1 Incident point is given for leaving the track

Much like iRacing, once you achieve a certain safety rating (in LFM’s case, the magic number is 4.00), you will receive a boost to your rating of 0.50 SR.

In another similarity with iRacing, safety rating points are only distributed during race events. While practising and during qualifying, no safety rating points are calculated.

License classes

There are a range of license classes in LFM, and these are structured differently from iRacing. The following license badges are available in LFM;

  • Rookie: You keep the ROOKIE licence as long as you have less than 10 ranked races or the SR drops below 4.0
  • Iron: For the IRON licence you need 10 ranked races and at least 4.0 SR
  • Iron+: like “IRON”, but min. 1000 Elo
  • Bronze: min. 1300 Elo, 10 ranked races and min. 4.0 SR
  • Bronze+: like “BRONZE”, but min. 1500 Elo
  • Silver: min. 1700 Elo, 25 ranked races and min. 5.0 SR
  • Silver+: like “SILVER”, but min. 2000 Elo
  • Gold: min. 2500 Elo, 50 ranked races and min. 6.5 SR
  • Gold+: like “GOLD”, but min. 3500 Elo
  • Platinum: min. 5000 Elo, 100 ranked races and min. 6.5 SR
  • Legend: min. 6000 Elo, 150 ranked races and min. 6.5 SR
  • Alien: min. 8000 Elo, 200 ranked races and min. 6.5 SR

Low Fuel Motorsport uses seasons to divide up their racing schedule. An LFM season spans across 12 race weeks, with your best 10 results used to calculate the final season standings. This means you can miss 2 races per season before being disadvantaged in the final standings.

Much like iRacing, each week will feature a different race, with that race being active for an entire week, before changing the following week. This gives all sim racers the chance to compete in that week’s race event on a schedule that works for them.

You can compete in as many races as you like each week, with your best result being the one used in the final standings.


Your Elo rating, which is your overall skill rating, is used to divide sim racers into divisions. As your Elo rating improves, you will move up to more competitive divisions where you’ll be racing against higher-skilled drivers.

The LFM division breakdown is;

  • Division 1: at least 2001 Elo
  • Division 2: 1601 – 2000 Elo
  • Division 3: 1301 – 1600 Elo
  • Division 4: 0 – 1300 Elo

The differences

Despite sharing a lot of similarities with how iRacing works and operates, Low Fuel Motorsport for ACC does have a fair few points of difference.

Elo Rating

The first difference is the Elo rating. While iRacing utilises a skill-based iRating system, LFM uses its own Elo rating system. The Elo system originated from chess and calculates the expected finishing position of each driver. If a driver surpasses expectations, i.e. finishes high than they should, they will earn Elo. If a driver finishes lower than expected, they will lose Elo.

Elo rating is also lost if a driver doesn’t finish the race or quits halfway through an event. There is an additional factor called K-factor. This takes into account the length of the race, which affects how much Elo can be earned or lost. Longer races reward drivers with larger Elo improvements compared to shorter races.

Reporting incidents

Drivers can act as stewards in LFM races, reporting incidents that they think should be reviewed. These are then reviewed by a team of LFM stewards to decide the outcome. This puts some power into the hands of sim racers to report on incidents that they feel need reviewing. There is a strict reporting policy meaning drivers can’t report incidents that do not need reviewing.

What are LFM ACC car setups?

With the racing on offer across LFM events incredibly close, sim racers often look for advantages wherever they can find them. And specific LFM ACC car setups offer the perfect advantage.

Many Assetto Corsa Competizione car setup creators utilise scheduled seasons on LFM to base their ACC car setups around. Setup creators can tailor their car setups to the specific conditions and race duration of each race event during an LFM season.

LFM BoP changes

This is true of the premium ACC setup bundles available on Sim Racing Setups. LFM adjust their BoP (balance of performance) each season which results in cars being given ballast changes to create a more even field.

However, by adding or removing ballast from cars to change the overall BoP, you can find that cars handle differently from week to week. This means a car setup that worked perfectly one season, may be a little slower the following season after an LFM BoP change.

Many setup creators, including the Sim Racing Setup creators, update their car setups for ACC each week to take into account the LFM BoP adjustments.

If you buy a premium car setup from Sim Racing Setups, you get free access to every update to that car setup forever. This means you will never have to purchase the same setup twice, and you will always have the most up-to-date LFM car setup available.

View our ACC car setups, where you can find premium LFM-designed ACC car setups.

Grab Your Sim Racing Gear Here

You can use the links below to shop for your favourite sim racing products, or for any products that we may have recommended. These links are affiliate links, and will earn us a small commission, with no additional cost for you.

Author Profile Picture

Article written by Rich

Co-Founder of SimRacingSetups.com

Rich is the co-founder, and one of the main F1 setup creators and content writers for SimRacingSetups. With over a decade of experience as a graphic designer, marketing director, competitive sim racer and avid motorsport fan, Rich founded SimRacingSetup.com to share his passion and knowledge of sim racing and Formula 1 with other sim racers.

Disclaimer: Some of the links on this page may be affiliate links. We may earn commission from any sale after clicking a link. Read our affiliate policy.