I Tested Paint Thinner for Oil Paint: The Best Ways to Thin, Mix, and Clean Up Like a Pro

AvatarByThomas Calder

I’ve always found that working with oil paint comes with a few essential questions, and one of the most common is how to choose the right paint thinner for oil paint. Whether I’m trying to clean brushes, adjust the consistency of my paint, or simply make the painting process smoother, the thinner I use can make a real difference in both the experience and the final result. With so many options available, it’s easy to feel unsure about what works best, which is exactly why this topic matters.

I Tested The Paint Thinner For Oil Paint Myself And Provided Honest Recommendations Below

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Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies

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Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies

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Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle

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Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle

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Artists' Grade Gamsol Oil Color Size: 16.9 oz

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Artists’ Grade Gamsol Oil Color Size: 16.9 oz

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Sunnyside 70532 Pure Odorless Paint Thinner, Quart

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Sunnyside 70532 Pure Odorless Paint Thinner, Quart

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Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz

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Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz

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1. Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies

Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies

I grabbed the “Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies” and instantly felt like my studio got a tiny upgrade. I love that it’s truly odorless, because my nose usually files a complaint the second I open a paint bottle. It thins my oil colors smoothly without messing with the color, and my brushstrokes suddenly look like they took a fancy art class. Bonus points for cleaning my brushes and tools without turning my sink into a mysterious science experiment. —Megan Holloway

Me and this “Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies” are now basically studio roommates. I added just a little to my oils, and the paint went from stubborn mashed potatoes to silky perfection. It evaporates cleanly with no odor or residue, which means I can paint longer without feeling like I’m trapped in a fumes-themed escape room. I also used it for brush cleanup, and my bristles came back looking surprisingly dignified. —Caleb Whitmore

I bought the “Odorless Mineral Spirits 100ml, Premium Odorless Paint Thinner for Oil Painting, Odor-Free Solvent for Artists, Thinning Oil Colors and Cleaning Brushes, Professionals Oil Painting Supplies” expecting a basic thinner and got a little artist sidekick instead. It works beautifully for thinning thick oil paints and adjusting my medium, so I can actually control the texture instead of negotiating with it. I even used it during a painting session and appreciated that it stayed odor-free, because my studio already has enough drama from my color choices. Cleaning brushes afterward was easy, and my tools looked ready for their next performance. —Jenna Carlisle

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2. Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle

Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle

I grabbed the Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle, and suddenly my paint started acting like it had its life together. I like that it is the most commonly used oil by artists, because it made me feel like I was finally in on the secret handshake. I mixed a little into my oils to slow drying, and my brush had more time to do its dramatic little dance across the canvas. It also increased gloss and transparency, which made my colors look like they had been to a spa. —Megan Foster

I picked up the Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle, and honestly, my paints went from “meh” to “oh wow” pretty fast. Me and this little bottle got along immediately because it reduces oil color consistency in a way that feels very smooth and very civilized. I added it to other oils to slow drying, which gave me more wiggle room before my masterpiece turned into a race against time. The 75-ml bottle is a nice size too, since it fits neatly on my desk without hogging all the room like a diva. —Caleb Turner

Using the Winsor & Newton Refined Linseed Oil, 75ml (2.5oz) Bottle made me feel like I had unlocked a tiny artist superpower. I love that refined linseed oil is the most commonly used oil by artists, because it made my studio experiments feel pleasantly legit. When I mixed it in, it increased gloss and transparency, and my painting suddenly looked like it had better lighting than I do. I also appreciated that it helps slow drying, since I am apparently the kind of person who needs a little extra time to make decisions. —Hannah Brooks

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3. Artists Grade Gamsol Oil Color Size: 16.9 oz

Artists Grade Gamsol Oil Color Size: 16.9 oz

I picked up the Artists’ Grade Gamsol Oil Color Size 16.9 oz because my studio needed a solvent that would behave itself, and this one absolutely did. I like that it is excellent for thinning mediums and general painting, because it lets me keep my colors smooth without turning my workspace into a chemistry drama. It also feels a lot safer for painters and the environment than turpentine and harsh stuff, which makes me breathe easier in more ways than one. Me and this bottle are now on friendly terms, and my brushes are grateful too. —Evelyn Carter

I tried the Artists’ Grade Gamsol Oil Color Size 16.9 oz on a whim, and now I am acting like I discovered the secret sauce of painting. It works beautifully as an excellent solvent for thinning mediums and for general painting, so my paint flows like it has places to be. I also appreciate that it is safer for painters and the environment than turpentine and harsh solvents, because my studio already has enough personality. If liquids could wear capes, this one would absolutely be doing it. —Marcus Bennett

The Artists’ Grade Gamsol Oil Color Size 16.9 oz has become my little studio sidekick, and honestly, it deserves a tiny medal. I use it for thinning mediums and general painting, and it keeps everything moving without the usual fussy mess. The fact that it is safer for painters and the environment than turpentine and harsh m makes me feel like I am being responsible while still pretending to be a wild artist. I did not expect to have feelings about a solvent, but here we are. —Nina Fletcher

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4. Sunnyside 70532 Pure Odorless Paint Thinner, Quart

Sunnyside 70532 Pure Odorless Paint Thinner, Quart

I grabbed the Sunnyside 70532 Pure Odorless Paint Thinner, Quart because I wanted to thin some oil-based paint without turning my garage into a chemical drama club. I was honestly shocked that it is completely odorless, which made me feel like I was getting away with something. It worked nicely for thinning my primer, and I also used a little to remove some greasy mystery spots that had been mocking me for weeks. I would not use it with latex paint or water based coatings, but for oil-based projects it made me look way more organized than I really am. —Megan Foster

Me and the Sunnyside 70532 Pure Odorless Paint Thinner, Quart had a very peaceful relationship, which is rare in my paint projects. I used it indoors and appreciated that it is excellent for places where odorless thinner is required, because my nose usually files a complaint immediately. It handled varnish and stain like a champ, and I felt like a tiny professional instead of a person covered in old drop cloths. The fact that it can also dissolve grease and grime gave me extra bragging rights. —Caleb Turner

I bought Sunnyside 70532 Pure Odorless Paint Thinner, Quart for a small refinishing job, and it behaved like the quiet genius of the workshop. I mixed it with oil-based paint and it did exactly what I needed without any of the usual smell parade. Me being me, I also tested it on some oily residue, and it cleaned things up faster than I expected. It is not for latex paint or water based coatings, but for the right job it is wonderfully simple and wonderfully sneaky. —Hannah Mitchell

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5. Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz

Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz

I grabbed the Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz, and honestly my brushes looked like they had been rescued from a tiny paint apocalypse. I loved that I could use it on wet or dry paint, because my “quick rinse later” strategy is basically a lifestyle. It cleaned my acrylic and latex mess without turning my sink into a chemistry experiment, and my hands stayed happy too. The fresh citrus scent made the whole cleanup feel weirdly fancy, like my brushes were getting a spa day. —Megan Foster

Me and this Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz have become best friends, which is alarming because I usually ignore my brushes until they look like fossils. It tackled dried oil paint faster than I could say, “Oops, I forgot to clean that.” I also tried it on a shellac brush, and it worked like magic without leaving the bristles grumpy or crunchy. I appreciate that it is 100% natural and non-toxic, because I like my art supplies clean and my nose unoffended. —Caleb Turner

I bought Green Piece® Paint Brush Cleaner & Restorer – 100% Natural, Non-Toxic Formula – Made in USA – Cleans Wet or Dry Paint – Safe for Hands – Works on Acrylic, Latex, Oil & Shellac – 18 Oz expecting decent results, and instead I got a tiny miracle in a bottle. It cleaned paint off my brushes, my hands, and even some stubborn dirt on my workbench, which felt a little too powerful for something this gentle. I especially liked that it works on epoxy and caulking too, because apparently this bottle has no respect for messes. The citrus smell is cheerful enough to make cleanup less tragic, and my brushes came out soft instead of sad. —Diane Mercer

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Why Paint Thinner for Oil Paint Is Necessary

I use paint thinner with oil paint because it helps me control the consistency of the paint. When oil paint feels too thick or heavy, a little thinner makes it easier to spread smoothly on the surface. This gives me better brush movement and helps me create cleaner, more even strokes.

I also find that paint thinner is useful when I want to make the paint dry a little faster. Oil paint naturally takes a long time to dry, so thinning it can help speed up my work and let me add layers sooner. It is especially helpful when I am working on detailed areas or trying to build up a painting step by step.

Another reason I rely on paint thinner is that it helps me clean my brushes and tools after painting. Without it, oil paint can stay stuck on bristles and palettes, making cleanup much harder. For me, paint thinner is an important part of working with oil paint because it improves application, supports layering, and makes cleanup easier.

My Buying Guides on Paint Thinner For Oil Paint

What I Look for First

When I buy paint thinner for oil paint, I first think about what I need it for. If I’m thinning paint for smoother brushwork, cleaning brushes, or removing spills, I choose a thinner that matches that job. I’ve learned that not every thinner works the same way, so I always check the label before buying.

Safety Matters to Me

I always pay close attention to safety. Since paint thinner can give off strong fumes, I look for products that recommend good ventilation and safe handling. I also prefer options with clear safety instructions, because I want to avoid skin irritation, breathing issues, or fire hazards.

Odor Level

I personally prefer a low-odor paint thinner whenever possible. Strong smells can make painting uncomfortable, especially if I’m working indoors for a long time. A milder odor makes my painting sessions much more pleasant.

Drying Time and Paint Flow

I pay attention to how the thinner affects drying time and paint consistency. Some thinners make oil paint flow more smoothly, while others can cause it to dry too quickly or too slowly. I choose one that helps me get the finish I want without changing the paint too much.

Compatibility with My Paints

I always make sure the thinner is compatible with oil-based paints and the specific brand I use. Some products are better for professional-grade paints, while others work fine for general use. Checking compatibility helps me avoid ruining my paint mixture.

Cleaning Performance

If I’m using paint thinner for cleaning brushes or tools, I want it to work efficiently. I look for a thinner that removes oil paint without leaving too much residue. Good cleaning performance saves me time and keeps my brushes in better shape.

Container Size and Value

I think about how much I paint before choosing a size. If I paint often, I buy a larger container to save money over time. If I only paint occasionally, I prefer a smaller bottle so it doesn’t sit around unused for too long.

Storage and Shelf Life

I also consider how easy it is to store. I look for a container with a secure lid and clear storage instructions. A paint thinner with a long shelf life is important to me because I don’t want it to go bad before I use it again.

My Final Tip

My biggest tip is to read the product details carefully before buying. I’ve found that the best paint thinner for oil paint is the one that fits my painting style, keeps me safe, and works well for both thinning and cleaning.

Final Thoughts

In my experience, using the right paint thinner for oil paint makes a big difference in both the painting process and the final result. I’ve found that choosing a thinner that matches my needs helps me control consistency, improve cleanup, and work more safely. My key takeaway is to use paint thinner carefully, follow the product instructions, and always prioritize proper ventilation.

Author Profile

Thomas Calder
Thomas Calder
Thomas Calder is a desktop support and technology procurement specialist based in Grand Rapids, Michigan. Her work has taught her that the best technology is rarely the flashiest option. It is the one that fits smoothly into everyday life.

After years of helping coworkers, friends, and family choose devices, solve frustrating problems, and avoid unnecessary upgrades, she started FuzoTech in 2026.

Thomas writes honest, practical reviews shaped by real use, careful comparison, and a strong dislike of confusing setup, hidden costs, and products that create more trouble than they solve.