top of page

Battle of the Engines: Is Honda GX390 or Briggs and Stratton Vanguard the Ultimate Pressure Washer Powerhouse?

Updated: Jan 22

When it comes to pressure washing, the engine is crucial to performance. DIY enthusiasts and professional cleaners often seek the best engines on the market, and two names frequently mentioned are the Honda GX390 and Briggs and Stratton Vanguard. Both are praised for their reliability and power, making them popular choices for petrol pressure washers. In this article, we will explore their features, performance, and suitability to help you choose the engine that fits your pressure washing needs in Cornwall.


Getting to Know the Honda GX390


The Honda GX390 stands out as a high-performance engine known for low emissions and excellent fuel efficiency. With a displacement of 389cc, it's a trustworthy choice for heavy-duty pressure washing tasks.


One notable feature of the Honda GX390 is its overhead valve (OHV) design, promoting better fuel combustion for increased power. This engine delivers up to 11 horsepower, making it capable of handling demanding cleaning jobs with ease.


Durability is another highlight. Constructed for rugged use, the Honda GX390 has garnered a loyal customer base. Reports suggest that owners of this engine can expect it to last for many years, with some users claiming they have operated these engines for over 1,500 hours without major issues.




Exploring the Briggs and Stratton Vanguard


On the other side, the Briggs and Stratton Vanguard engine is designed with innovation in mind. It boasts a 386cc displacement and is built for commercial-grade applications, offering 11 horsepower as well.


This engine features an advanced cooling system and an integrated fuel tank designed to optimize efficiency. Users note that the Vanguard engine often saves around 15% more fuel compared to its competitors during heavy usage.


The Vanguard's engineering focuses on performance. Many professionals report that its quick bursts of power make it ideal for tackling tough stains. These features, combined with a reputation for longevity, make it a solid choice for those who depend on their equipment every day.


High angle view of a Briggs and Stratton Vanguard engine mounted on a pressure washer
The Briggs and Stratton Vanguard engine is engineered for efficiency and power.

Performance Highlights


Both engines have their strengths, but key differences can influence your choice.


The Honda GX390 provides a smoother operation, even under strain. Users appreciate how quiet it runs, especially beneficial if you work in residential areas. Additionally, its low vibration means reduced wear on the engine and less strain on your body during prolonged usage.


In contrast, the Briggs and Stratton Vanguard is characterized by its innovative features improving efficiency. Many commercial users favor it for its superior cooling system and after-market support, which enhance sustained performance. While both engines can produce similar horsepower, the Honda GX390 excels in steady torque, whereas the Vanguard offers quick, powerful bursts.


Fuel Efficiency


Fuel efficiency is vital for continuous operation. The Honda GX390 usually outshines competitors in this category. Users often find they can run this engine longer between fuel refills, which translates to approximately 25% longer operational time per tank. This is especially useful for those operating pressure washing services or working on large properties.


While the Briggs and Stratton Vanguard may not match the GX390 in day-to-day efficiency, it offers a good balance of performance and fuel consumption. Its design allows it to handle heavier loads effectively, making it a worthy option in demanding scenarios.


Maintenance Made Simple


Maintenance can impact the decision-making process. The Honda GX390 is well-known for its user-friendly features. Accessible parts and thorough maintenance guides simplify upkeep, making it a preferred choice for less experienced users.


The Briggs and Stratton Vanguard, while boasting advanced technology, may require more effort for maintenance. Users have noted that its intricate components can make servicing less straightforward. However, many also report enjoying increased reliability over time with diligent care.


Who Should Choose Which Engine?


Ultimately, your choice hinges on your intended use.


For casual users or DIY enthusiasts, the Honda GX390 is likely the better fit. Its power, efficiency, and straightforward maintenance make it a great option for home projects or minor commercial jobs.


In contrast, the Briggs and Stratton Vanguard is tailored for heavy-duty applications. Professionals who regularly use their pressure washers will benefit from the Vanguard’s robust construction and fast power delivery, making it ideal for demanding cleaning tasks.


Eye-level view of a pressure washer in action on a driveway
A pressure washer efficiently cleans a driveway using the power of the Honda GX390 engine.

Cost Considerations


When weighing your options, consider the total ownership costs. Generally speaking, pressure washers equipped with the Honda GX390 come at a higher upfront price. However, many users find that the long-term benefits of reliability and fuel efficiency offset this initial investment.


On the other hand, the Briggs and Stratton Vanguard typically offers a lower entry cost while still providing commendable performance. This can appeal to budget-conscious buyers looking to enter the pressure washing business.


Insights from Customers


Before making a final decision, checking customer feedback can offer real-world insights. People who own the Honda GX390 often highlight its reliability and usable design. Many have shared experiences of using these engines for many hours and appreciating their performance during critical cleaning jobs.


Conversely, Vanguard users commend its strength and available support networks for maintenance and issues. However, some feedback addresses concerns about the higher maintenance requirements tied to its advanced components.


Final Thoughts


Choosing between the Honda GX390 and the Briggs and Stratton Vanguard ultimately revolves around your specific needs. If you seek reliability and user-friendly features for home projects or light commercial tasks, the Honda GX390 is a strong contender. Its long-standing reputation suggests it can handle your cleaning jobs effectively.


However, for professionals engaged in heavy-duty cleaning, the Briggs and Stratton Vanguard may be more appealing. Its exceptional power and efficiency could be invaluable for demanding tasks, even if it requires more maintenance.


In the battle of these two engines, there might not be a clear winner. What matters most is considering your budget and how you plan to use your pressure washer in Cornwall. Both engines promise outstanding performance to enhance your pressure washing experience. Happy cleaning!


Places to Buy?

There are several companies that manufacture pressure washers like these. Below is a snapshot of just a few:

Commenti


T: 01503 635 536

E: rich@jetpowerpressurewashing.co.uk

Areas Covered: 

Abbotskerswell, Allercombe, Angarrack, Appledore, Ash Mill, Ashburton, Ashculme, Axminster, Bangors, Barnstaple, Barripper, Bathpool, Beer, Belowda, Bennacott, Bideford, Bilberry, Blisland, Bodmin, Boscastle, Boscastle, Boscreege, Bosoughan, Bossiney, Botallack, Botusfleming, Bovey Tracey, Boyton, Braunton, Breage, Bristol, Brixham, Brixham, Buckfastleigh, Bude, Budleigh Salterton, Cadgwith, Callington, Calstock, Cambourne, Camelford, Carbis Bay, Cawsand, Chagford, Charlestown, Chudleigh, Clovelly, Colyton, Coverack, Crantock, Crediton, Croyde, Cullompton, Dartmouth, Davidstow, Dawlish, Delabole, Downderry, Exeter, Exmouth, Falmouth, Fowey, Great Torrington, Hartland, Hatherleigh, Hayle, Helston, Holsworthy, Ilfracombe, Indian Queens, Ivybridge, Jacobstow, Kingsand, Kingsbridge, Kingsteignton, Launceston, Liskeard, Looe, Lostwithiel, Marazion, Mevagissey, Moretonhampstead, Newlyn, Newquay, Newton Abbot, Northam, Okehampton, Ottery Saint Mary, Padstow, Paignton, Par, Pelynt, Penzance, Perranporth, Plymouth, Polperro, Port Isaac, Quethiock, Redruth, Saint Just, Salcombe, Saltash, Seaton, Sennen Cove, Sidmouth, South Molton, St. Austell, St. Columb, St. Ives, Tavistock, Teignmouth, Tiverton, Torpoint, Torquay, Totnes, Truro, Wadebridge, Westward Ho!, Woolacombe, Zennor. 

All of Cornwall and Devon covered.

Our services include pressure washing Cornwall, Roof Cleaning Cornwall, Gutter cleaning Cornwall, Caravan Cleaning Cornwall, Soft washing Cornwall, soffit cleaning, fascia cleaning, static home cleaning, decking cleaning, patio cleaning, driveway cleaning, gutter clearing, render cleaning and many more.  Get in touch for your FREE QUOTE

© 2025 by Jet Power Pressure Washing, a trading name of The Casual Gardening Company 

bottom of page