Name: DEWALT Biodegradable Bar & Chain Oil — Eco-Friendly Chainsaw Lubricant
Brand: DEWALT
Rating: 5.0 (11 reviews)

Product review

What it is: a biodegradable bar and chain lubricant formulated for use on chainsaws and pole saws, suitable for both gas-powered and electric tools. The product is an ultraclean, plant-oil-based formula intended for applications where oil can be lost to the surroundings.
Materials and formulation: made primarily from soy-derived, biodegradable ingredients that are non-toxic to people and designed to minimize environmental harm. The formula emphasizes tackiness to adhere to the bar and chain and resists sling-off during heavy cutting.
Thermal and lubrication properties: engineered to perform across a broad temperature window, with reliable flow and film retention from about -15°F through testing up to 500°F. It has a substantially higher viscosity index compared with conventional petroleum chain oils, helping maintain consistent lubrication as temperatures change.
Compatibility and use: designed for automatic chain-oilers and manual application on both backyard and professional chainsaws as well as pole saws. Use it the same way you would use conventional bar and chain oil—keep the reservoir topped up, check flow during long cuts, and refill as needed to maintain lubrication and reduce wear.
Manufacturing and testing: formulated and tested to meet industry needs for thermal control and durability. The product is produced in the United States and has been evaluated by treecare and equipment experts for practical performance in demanding cutting conditions.

Pros

Biodegradable soy-based formula, non-toxic
Wide temperature tolerance and high viscosity stability
Tacky formula with low sling-off and reliable feed

Cons

Priced higher than conventional petroleum oils
May require routine level checks during extended cutting
Availability varies by retailer

VerdictThis biodegradable DEWALT chainsaw lubricant delivers dependable chain lubrication and reduced wear while using plant-based ingredients that break down safely in the environment. It stays tacky, resists fling-off, and performs across a wide temperature span from very cold to very hot. Professional treecare users and homeowners who cut near vegetation or waterways will appreciate the reduced enviro

Reviews

Terrence Woods 5/5

Use the recommended chain and bar oil

This is a proper chainsaw oil for its intended use. Keep an eye on the reservoir after each session to ensure adequate lubrication.
Sean Liston 5/5

Solid purchase

Worked as described and met my needs.
Eric Ascalon 5/5

Worth the extra for a plant-based chain oil

I switched to this for my battery chainsaw and pole saw because the oil ends up on the wood I burn. It performs just as well as the petroleum oils I used before—stays on the chain, lubricates effectively, and hasn’t reduced cutting performance. It costs a bit more, but I prefer knowing the oil is plant-based and biodegradable.
Juan 5/5

Strong lubrication, cleaner environmental profile

Performs like a premium product and is formulated to be gentle on the yard. It clings to the bar through heavy cuts and helped my saw run cooler and smoother across several large logs. Feels reassuring to avoid spraying petroleum oil around my property.
John Chester 5/5

Exactly what it should be

Does its job perfectly.
David 5/5

Practical choice for chain maintenance

If you have a chainsaw, you need a dependable oil—this solves that. Keeps the bar and chain moving and fed.
Ricky 5/5

Eco-friendly without giving up performance

After trying many biodegradable options, this one matched traditional oils in tackiness and feed consistency. I used it on both a gas chainsaw and a cordless pole saw without dry spots or overheating. Chain stayed lubricated during long cuts and there was no strong odor. Viscosity worked well across the temps I encountered.
Julija 5/5

Why I choose this DEWALT formula

Reasons I prefer it: it’s USDA biobased and plant-derived for 100% loss scenarios; it handles extreme cold and high heat; the viscosity stays steadier than many conventional oils; and it’s made by a trusted tools brand that ensures compatibility with common chainsaw designs.
Steven 5/5

Works with my small saw

I use it on an 8-inch chainsaw and it performs fine.
SWFOTWSKI's 5/5

Reliable and eco-conscious

Kept the chain well-lubricated and ran smoothly. The plant-based formula reduces sling-off and environmental impact. Slightly more costly, but worth it for the performance and safety.
Felipe de Jesús García Guerra 5/5

Tree-friendly formulation

I use a saw mainly for pruning and appreciate that this oil won’t harm trees. It gives me confidence when working around living plants.