STIHL MS 391 Chainsaw Review: A High-Performance Workhorse for Demanding Tasks

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When it comes to powerful and reliable chainsaws, the STIHL brand has always been my go-to choice. Today, I’ll be sharing my experience with the STIHL MS 391, a high-performance chainsaw designed for demanding tasks. In this review, I will discuss the key features, benefits, drawbacks, and how it compares to its competitors.

STIHL MS 391

Power and Performance

The STIHL MS391 boasts a robust 64.1 cc engine that delivers 4.4 hp, providing plenty of power for tackling heavy-duty tasks such as felling large trees, bucking logs, and cutting firewood. In my experience using the MS 391, I found it to be extremely efficient and capable of handling a variety of cutting tasks with ease.

STIHL MS 391

One aspect that sets the MS 391 apart from its competitors is its excellent power-to-weight ratio. Weighing in at around 15.9 lbs (7.2 kg), this chainsaw remains relatively lightweight despite its powerful engine, making it easy to maneuver and reducing user fatigue during prolonged use.

Ease of Use and User-Friendly Features

The STIHL MS 391 is designed with user comfort and convenience in mind. The advanced anti-vibration system significantly reduces vibrations, allowing for more comfortable use over extended periods. I also appreciate the easy-start system, which ensures a smooth and hassle-free start-up even in colder conditions.

STIHL MS 391

Another notable feature is the efficient air filtration system, which effectively keeps dust and debris out of the engine, ensuring optimal performance and prolonging the chainsaw’s lifespan. This is particularly important when working in dusty environments or cutting through dirty wood.

Comparison to Competitors

While there are other chainsaws on the market with similar power and capabilities, the STIHL MS 391 offers a few key advantages over its competitors, such as the Husqvarna 460 Rancher and the Echo CS-590 Timber Wolf. The MS391’s advanced anti-vibration system, easy-start mechanism, and efficient air filtration system make it a top choice for those seeking a powerful and user-friendly chainsaw.

Husqvarna 460 Rancher

Husqvarna 460 Rancher

The 460 Rancher is a powerful chainsaw that’s often compared to the MS391. However, one advantage the MS 391 has over the 460 Rancher is its anti-vibration system. The MS 391’s advanced anti-vibration system makes it easier to use for extended periods of time,

Echo CS-590 Timber Wolf

Echo CS-590 Timber Wolf

The Echo CS-590 Timber Wolf is another chainsaw that’s often mentioned alongside the MS 391. While the CS-590 has a slightly larger engine than the MS 391, the MS 391’s efficient air filtration system gives it an advantage over the CS-590 in terms of performance and longevity. The MS 391’s air filtration system is designed to provide superior dust protection, ensuring the chainsaw operates at optimal performance levels for longer periods of time.

Comparison Table

FeatureSTIHL MS 391 25in.Husqvarna 460 RancherEcho CS-590 Timber Wolf
Engine Displacement64.1 cc60.3 cc59.8 cc
Horsepower4.4 hp3.62 hp3.89 hp
Weight (without cutting equipment)15.9 lbs (7.2 kg)13.2 lbs (6 kg)13.2 lbs (6 kg)
Bar Lengths Available16″, 18″, 20″, 25″18″, 20″, 24″18″, 20″
Anti-vibration SystemYesYesYes
Easy-start MechanismYesYesYes
Air Filtration SystemAdvancedStandardStandard
Fuel Capacity20.3 oz (600 ml)14.88 oz (440 ml)21.8 oz (645 ml)
Oil Capacity11.2 oz (330 ml)10.14 oz (300 ml)10.1 oz (300 ml)

This table provides a clear comparison of the STIHL MS 391 and its competitors, showcasing the chainsaw’s strengths in power-to-weight ratio, anti-vibration system, and easy-start system.

Benefits and Drawbacks

The STIHL MS 391 offers several benefits, including its powerful engine, lightweight design, and user-friendly features. However, it’s worth noting that the MS 391 is relatively more expensive than some of its competitors. Despite the higher price tag, I believe the MS 391’s performance and features justify the investment, particularly for those who require a reliable and high-performing chainsaw for demanding tasks.

Pros:

  1. Powerful engine: The MS 391’s 64.1 cc engine delivers impressive power, making it ideal for heavy-duty cutting tasks, such as felling large trees, cutting firewood, and clearing land. With 4.4 hp, it can easily handle a wide range of cutting jobs.
  2. Lightweight design: Despite its powerful engine, the MS 391 weighs just 15.9 lbs (7.2 kg) without the cutting equipment. This lightweight design allows for better maneuverability and reduced user fatigue during extended use.
  3. User-friendly features: The MS 391 comes equipped with an advanced anti-vibration system, which minimizes vibrations and ensures a comfortable user experience. The easy-start mechanism simplifies the starting process, while the efficient air filtration system protects the engine from dust and debris.
  4. Durability: The MS 391 is built with high-quality materials, ensuring long-lasting performance and reliability. It’s designed to withstand the rigors of heavy-duty use, making it a great investment for those who need a chainsaw that can handle demanding tasks.

Cons:

  1. Price: One of the primary drawbacks of the STIHL MS 391 is its relatively higher price tag compared to some competitors. However, it’s important to consider the performance, durability, and user-friendly features that the MS 391 offers, which may justify the additional investment for many users.
  2. Availability: STIHL products are typically available only through authorized dealers, which may limit accessibility for some customers. However, purchasing from an authorized dealer ensures that you receive a genuine product with proper support and service.

Evolution from Previous Models

STIHL MS 391

The STIHL MS 391 is a successor to the well-regarded STIHL MS 390, and the improvements made to the newer model are evident. The MS 391 features a more powerful engine, delivering 4.4 hp compared to the MS 390s 4.0 hp. This increase in power allows the MS 391 to handle more demanding tasks with greater ease.

From a user’s perspective, the evolution from the MS 390 to the MS 391 has brought about meaningful enhancements in power, fuel efficiency, and engine protection. These improvements make the STIHL MS 391 a worthy successor and an even more capable tool for tackling heavy-duty tasks.

Conclusion

In summary, the STIHL MS 391 is a high-performance chainsaw ideal for users seeking power, reliability, and ease of use. Its powerful engine, advanced anti-vibration system, and user-friendly features make it an excellent choice for tackling heavy-duty tasks. Although it comes with a higher price tag compared to some competitors, the STIHL MS 391’s performance and features make it a worthwhile investment for those in need of a dependable and powerful chainsaw.

Where to buy

Experience the power of the STIHL MS 391 25in. chainsaw! Unmatched performance, easy-start & advanced anti-vibration system. Click to buy online.

Kevin Lallab
Kevin Lallab
Forestry Author

Snow and land management isn't just a profession for me; it's a calling. My aim is to make life safer and more comfortable for those in my community while ensuring that our environment remains healthy and vibrant. Whether you need advice on snow removal, chimney maintenance, wood stoves, or land management, I'm here to help. Together, we can create a safer and more sustainable future.

11 comments

Magnificent saw when it shows up for work. It's like a parachute, it either works or it doesn't. It's a Stihl all right, as in "Stihl won't start.". Buy this saw, or 70 axes, either way, you'll get a workout.

Daniel Adams
Mark
October 11, 2023 9:16 pm

Stihl won't START!! SAWS OUR GOOD WHEN THEY RUN!! I'AM A RETIRED PRO LOGGER, PRO FELLER, LIMBER, BUCKER!! 21-YEARS IN THE WOODS. MOLALLA, OREGON. BUT THERES A HAT FULL OF REASONS A SAW WONT START, WONT RUN!! I DO KNOW THAT MANY GUYS OUR ON HERE, THAT SAY A STIHL MS 391 IS A BAD SAW, DONT BUY ONE!! ALL THAT. I RAN THE MOST POWERFULL STIHL S MADE CUTTIN IN THE WOODS 090 60" BARS 075 48"BARS, O84 066, 064, 056,048, ON & ON IT GOES!! THE BEST SAW OUT THERE IS THE SAW YOU CAN RUN & CUTT GOOD WITH!! MANY LEVELS OF EXSPERIANCED GUYS OUT THERE!! GUYS THAT OUR BEGINNERS, AMATURES, GOOD, SEMI PRO, PRO, AND SUPER PRO!! AND GUYS BUYING A NICE NEW STIHL, AND HAVEING ALL KINDS OF PROBLEMS WITH THE SAW!! WHEN MOST THE TIME ITS NOT SAW!! ITS THE PERSON RUNNING THE SAW!! MOST THE TIME!! YES THERE'S NEW SAWS, FACTORY FLAWS, NOW & THEN SURE!! BUT MOST GUYS DONT KNOW HOW TO TAKE CARE OF A SAW, DONT KNOW HOW TO FILE A CHAIN, & RAKER'S!! IT CAN BECOME A REAL MESS FOR SOME, IT TAKES A FEW YEARS TO GET GOOD AT KEEPING YOUR SAWS UP & RUNNING AS WELL AS THEY CAN RUN!! EXSPERIANCE IS KEY!! FOR EVERYTHING IN LIFE!! SAWS AS WELL!! LOVE ALL YOU MEN & WOMEN CUTTERS OUT THERE!! SAFETY NO-1. BY CHAINSAW RICK

Kristin Watsons
Rick Guilliams
November 27, 2023 8:33 am

I HAVE LIKE 8-9-VIDEO'S ON YOUTUBE RICKS PINE TREE CUTTIN!! RICKS BIG CHERRY STUMP CUTTIN!! I'AM USEING A STIHL MS--250-16" BAR. AND STUMP CUTTIN I'AM USEING MY NEW MS--391 25"--BAR ES & SUPER FULL CHIZEL CHAIN. THAT CHERRY STUMP WAS A BIGGIE!! 54--56" ACCROSS, OLD BIGGEST CHERRY IVE EVER CUTT!! I PUT THE MS 391 TO THE TEST, AFTER RUNNIN HER EASY 5--TANKS. THE VIDEO SHOWS HER EATIN THAT STUMP UP, AND NICE BIG FIR BLOCKS EATIN THEM UP!! I WISH ALL YOU GUYS & GALS!! SAFE CUTTIN ALLWAYS!! LOVE RICK CHAINSAW RICK!! 67--Y/OLD 5-28-56

Daniel Adams
Rick Guilliams
September 27, 2023 6:16 am

I HAVE ONE FOR ALL YOU GUYS & GALS!! STIHL MS THE MANS SAW!! TURN THE M UPSIDE DOWN WS WOMANS SAW!! M. S. SERIES. LIKE I SAID I'AM A RETIRED PRO LOGGER, AND YES A PERSON NEEDS TO LEARN TO TAKE CARE OF THERE SAW & SAW'S!!!! & THERE CHAINS!! THE BEST MAN!! AND THE BEST SAW, CAN'T CUTT IF YOUR CHAIN IS GETTIN DULL, OR IS DULL!! ONE GUY WAS ASKING MIX RATIO FOR STIHL MS 391 ITS 50:1 FILE --3/8 MY NEW STIHL MS--391 25" ROLLAMATIC ES. RS3 SUPER CHIZEL CHAIN, CUTTS NICE!! THE BEST SAW, IS THE BEST SAW YOU CAN HANDLE, FOR EACH PERSON!! AND THE AMOUNT OF CUTTIN EXPERIENCE YOU HAVE!! IF YOUR CUTTIN LITTLE TREES, OR FIREWOOD, A GOOD SAW IS A STIHL MS --250 THAT LITTLE SAW IS A GOODY!! $399.95 + TAX $34.00 $433.95 OUT THE DOOR IN VANC, WASH. I LIKE MY NEW MS 391 25" GOOD SAW!! HOPE YOU GUYS GET ONE!! ITS A GOOD CUTTER!! BE SAFE CUTTIN!! LOVE RICK!! BY CHAINSAW RICK!!!!

Daniel Adams
Rick Guilliams
September 27, 2023 6:02 am

Not happy with my 391– doesn’t start-new plug new gas , relentless pulls; ran well 2 years ago, it’s a back up for my 026 which isvery reliable . R

Daniel Adams
Bruce johnson
September 15, 2023 1:41 am

YES THE STIHL MS391 IS A GOOD SAW!! ITS MORE $$ BUT ITS MORE SAW!! TAKE CARE OF YOUR SAW'S!! THEY CAN LAST FOR MANY YEARS!! I'VE RAN STIHL'S SINCE I WAS 14-YEARSOLD!! NOW I'AM 67-Y/OLD!! I'VE BEEN RUNNIN STIHL'S FOR 53-YEARS!! THERE THE BEST BUILT & BEST SAW YOU CAN GET!! ALL US RETIRED PRO TIMBER FELLERS!! WE KNOW THAT BY YEARS OF CUTTIN WITH OUR STIHL'S!! TAKE CARE OF YOUR STIHL SAW!! IT WILL TAKE CARE OF YOU!! PUT THE BREAD 🍞 AND BUTTER 🧈 ON MY FAMILIES TABLE FOR MANY YEAR'S!! RETIRED PRO TIMBER FELLER, LIMBER, BUCKER!! MOLALLA, OREGON!! I WISH SAFETY 1ST. CUTTIN TO ALL WHO CUTT, BE SAFE NO.1. BY RICK

Daniel Adams
Rick Guilliams
August 24, 2023 10:40 pm

Stihl's!!!! Our my favorite Saws. I've Ran the biggest Stihl's Ever made. There a great SAW!!!! I JUST GOT A NEW MS391-25"BAR!!!! GOOD SAW 64.1 CC. 4.4-HP. CUTTS GREAT. BY [email protected]

Daniel Adams
Rick Guilliams
June 15, 2023 10:28 pm

U need ms 311 or 310 how much ang my location is free state phuthaditjhaba

Daniel Adams
mohloai
May 10, 2023 11:19 pm

So nice

Daniel Adams
Fanwel Ngoma
May 7, 2023 5:43 am

IAM A RETIRED PRO LOGGER NOW. AND ON JUNE 3RD --23 IAM BUYING A NEW MS391 STIHL SAW. GOOD SAW!! $709.95 + TAX $770.48 OUT THE DOOR. PARKROSE HARDWARE VANC, WASH. BY RICK

Daniel Adams
Rick Guilliams
May 6, 2023 7:07 am

I have a stihl 310 24in 20yrs old I use it for fire wood 10 cords as year Never had a problem thinking about buying a 311

Daniel Adams
Tim moore
May 6, 2023 1:18 am

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