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Costco offers a seasonal selection of premium gas lawn mowers from brands like Honda, Husqvarna, and Toro at prices typically 10-15% lower than competing retailers. These mowers require 87+ octane unleaded gasoline with less than 10% ethanol content, come with manufacturer warranties plus Costco's generous return policy, and are generally available in stores from March through July with the best deals appearing in May and late-season clearance. What Gas Lawn Mowers Does Costco Sell? Costco carries a rotating selection of gas-powered lawn mowers that changes seasonally, typically featuring 4-6 models from premium brands. The inventory focuses on mid-to-high-end residential models rather than entry-level or commercial options. Most Costco locations stock these mowers from March through July, with online availability sometimes extending longer. BrandCommon ModelsPrice RangeKey FeaturesHondaHRX217VKA, HRN216VKA$499-$749GCV200 engine, NeXite deck, 4-in-1 VersamowHusqvarnaLC221FHE, LC121P$349-$499Fwd self-propelled, 21" cutting width, 3-in-1 capabilityToroRecycler 22", TimeMaster 30"$399-$899Personal Pace system, SmartStow storage, wide cutting pathCraftsmanM275$329-$399159cc engine, 21" deck, 3-in-1 capabilityTroy-BiltTB200$299-$379Check My Oil system, 21" deck, 3-in-1 capability Selection varies significantly by location and season, with larger warehouses offering more options. The most common configuration is a 21-inch, self-propelled model with mulching capability in the $399-$599 range. How Do Costco Gas Lawn Mower Prices Compare to Other Retailers? Costco consistently offers lower prices on identical lawn mower models compared to major home improvement retailers and online marketplaces. The average savings range from 10-15% off MSRP, with occasional sales pushing discounts to 20-25%. Executive members receive an additional 2% reward on their purchase, further enhancing the value proposition. ModelCostco PriceHome DepotLowe'sAmazonSavings vs. AverageHonda HRX217VKA$699$799$799$779$93 (12%)Husqvarna LC221FHE$449$499$499$489$47 (10%)Toro Recycler 22"$399$449$429$439$37 (8%)Toro TimeMaster 30"$899$1,099$1,049$1,029$160 (15%)Craftsman M275$349$399$379$389$40 (11%) Costco's prices often include features that are optional add-ons at other retailers, such as bagging systems or mulch kits. The retailer's limited selection means they can negotiate better wholesale pricing on specific models, passing savings to members. What Type of Gas Should You Use in a Costco Lawn Mower? All gas lawn mowers sold at Costco require regular unleaded gasoline with a minimum octane rating of 87. Higher octane fuels provide no benefit and waste money in these small engines. Fuel should contain no more than 10% ethanol (E10) as higher ethanol content can damage engine components. Most manufacturers of Costco-sold mowers specifically warn against using E15 or E85 fuels, which can void warranties. Fresh fuel is crucial – gas begins to degrade after 30 days, so avoid storing large quantities. For optimal performance, consider using ethanol-free gasoline (sometimes called recreational fuel) if available in your area. Fuel stabilizers like Sta-Bil or Sea Foam should be added if the mower will sit unused for more than 30 days. The typical gas tank capacity for Costco mowers ranges from 0.25 to 0.4 gallons, providing 45-90 minutes of mowing time. Does Costco Sell Gas for Lawn Mowers? Costco gas stations sell regular unleaded gasoline that is suitable for lawn mowers and other small engines. Their fuel meets the 87+ octane requirement and typically contains 10% ethanol (E10), which is within acceptable limits. However, Costco's high-volume pumps can make it challenging to fill small gas cans without spillage. The warehouse does not sell specialized small engine fuels or ethanol-free options that some premium mowers recommend. Some Costco locations sell premixed fuel for two-stroke engines in the lawn and garden section seasonally. While Costco fuel is quality-tested and generally reliable, it's designed primarily for automotive use rather than optimized for small engines. For long-term storage or premium equipment, specialty small engine fuels from dedicated lawn equipment retailers may be preferable. Are Costco Gas Lawn Mowers Good Quality? Costco selectively stocks mid-to-high-end models from reputable manufacturers rather than budget options. Their buying power allows them to offer better-quality mowers at prices comparable to entry-level models elsewhere. Honda models sold at Costco consistently receive the highest reliability ratings and owner satisfaction scores. BrandReliability RatingAverage LifespanCommon PraiseCommon ComplaintsHondaExcellent (4.7/5)8-12 yearsEasy starting, durability, cut qualityHigher price, heavier weightHusqvarnaVery Good (4.3/5)6-10 yearsValue, features, maneuverabilityOccasional starting issues after storageToroVery Good (4.2/5)6-9 yearsInnovation, ease of use, storage optionsPlastic components, wheel durabilityCraftsmanGood (3.9/5)5-8 yearsPrice point, parts availabilityInconsistent quality controlTroy-BiltGood (3.8/5)5-7 yearsValue, simplicity, lightweightDurability concerns, limited features Costco's quality control standards often result in receiving specially manufactured versions with upgraded components. Customer reviews specifically mention that identical model numbers often have better build quality at Costco than other retailers. What Warranty Coverage Comes With Costco Gas Lawn Mowers? Gas lawn mowers at Costco include the full manufacturer warranty, typically ranging from 2-5 years depending on the brand and model. Honda mowers generally offer the most comprehensive coverage with 5-year residential warranties on both the engine and the mower itself. Costco does not automatically extend manufacturer warranties like they do with some electronics purchases. The retailer's famous satisfaction guarantee provides an unofficial extended return period beyond the typical 90-day policy for most retailers. Costco Concierge Services can assist with warranty claims and manufacturer contact information for the first two years. Some Costco locations offer Square Trade extended warranty plans at checkout for additional coverage beyond manufacturer terms. Warranty service must typically be performed at authorized service centers rather than at Costco itself. Always register your mower with the manufacturer after purchase to ensure warranty coverage is properly activated. When Do Costco Gas Lawn Mowers Go on Sale? Costco typically introduces lawn mowers in March with initial pricing, followed by peak season discounts in April and May. The best deals often appear in May, with instant rebates of $50-$150 off already competitive prices. Late-season clearance begins in July with discounts of 15-30% to clear inventory before fall merchandise arrives. Regional timing varies based on climate, with southern stores receiving inventory earlier and northern locations keeping stock longer. Costco's "instant rebate" promotions are preferable to mail-in rebates offered by competitors as the savings are immediate. The retailer's pricing strategy involves fewer but deeper discounts compared to the frequent but smaller sales at home improvement stores. Online availability through Costco.com sometimes extends beyond in-warehouse availability with occasional free shipping promotions. Executive members should time purchases during the 2% reward period to maximize savings on these larger purchases. How to Maintain a Gas Lawn Mower from Costco Proper maintenance extends the life of your Costco lawn mower and ensures optimal performance: Change oil after the first 5 hours of use, then annually or every 50 hours Replace air filters every 25 hours of operation or once per season Clean or replace spark plugs annually before the mowing season begins Sharpen blades twice per season for optimal cutting performance Clean the underside of the deck after each use to prevent rust and clumping Use fuel stabilizer when storing for more than 30 days Drain fuel completely or run the engine dry before winter storage Check and adjust drive cables and belts annually Lubricate wheel bearings and moving parts at the beginning of each season Inspect safety features like blade brake clutches before each use The owner's manual included with your specific model provides maintenance schedules and procedures tailored to your mower. Most Costco mowers include a maintenance reminder system or hour meter to help track service intervals. Costco Gas Lawn Mowers vs. Electric Models: Which Should You Buy? Costco offers both gas and electric lawn mowers, each with distinct advantages for different users. Your property size, terrain, and personal preferences should guide your decision between these power sources. FactorGas MowersElectric MowersPrice Range at Costco$299-$899$349-$699Runtime1-2 hours per tank30-60 minutes per chargePowerConsistent regardless of battery levelMay diminish as battery depletesMaintenanceRegular oil changes, spark plugs, filtersMinimal (blade sharpening only)WeightHeavier (80-120 lbs)Lighter (50-80 lbs)Noise LevelLouder (85-95 dB)Quieter (65-75 dB)Environmental ImpactHigher emissions, uses fossil fuelsZero emissions during operationBest ForLarger properties (>1/4 acre), thick grassSmaller yards, noise-restricted areas Gas mowers excel at handling challenging conditions like wet grass, tall growth, and larger properties. Electric models offer convenience, lower long-term maintenance, and environmental benefits for smaller properties. Costco's selection of electric mowers has expanded significantly in recent years, reflecting growing consumer interest. The price gap between quality gas and electric options has narrowed, making the decision more about preferences than budget. What Brands of Gas Lawn Mowers Does Costco Carry? Costco focuses on established brands with proven reliability records rather than offering a wide variety of options. Honda is their premium offering, known for exceptional reliability, superior cut quality, and industry-leading warranties. Husqvarna models represent the mid-premium segment with excellent features-to-price ratio and good durability. Toro mowers feature innovative designs like the Personal Pace self-propulsion system and SmartStow vertical storage. Craftsman and Troy-Bilt occasionally appear as value options, offering good performance at more accessible price points. The retailer avoids budget brands with questionable reliability, focusing instead on providing value through discounted premium products. Costco's buying power often results in exclusive models with enhanced features not available at other retailers. Brand availability varies by region and season, with some warehouses carrying regional favorites based on local preferences. Can You Return a Gas Lawn Mower to Costco? Costco's generous return policy applies to gas lawn mowers with some practical limitations. The official policy allows returns at any time if you're not satisfied, even after the mower has been used. For gas-powered equipment, Costco typically requests that all fuel be drained before returning to the warehouse. The mower should be reasonably clean and include all original parts, accessories, and documentation. Seasonal items like lawn mowers may have an unofficial 30-90 day return window at some locations, though this isn't formal policy. Returns can be processed in-warehouse even for online purchases, eliminating shipping hassles for large items. Costco tracks return patterns and may restrict future purchases if they detect abuse of the return policy. The return process is typically straightforward, with most members reporting positive experiences even with large seasonal items. How to Assemble a New Gas Lawn Mower from Costco Unbox the mower in your garage or driveway, checking for any shipping damage or missing parts. Unfold the handle assembly and secure it using the provided knobs or quick-release levers. Attach the recoil starter rope to the guide on the handlebar if it's not already in place. Install the grass collection bag by connecting the plastic frame and attaching the fabric bag. Check oil level using the dipstick – most Costco mowers come with oil already added but verify before starting. Add fresh unleaded gasoline (87+ octane with no more than 10% ethanol) to the fuel tank. Connect the spark plug wire if it was disconnected for shipping. Adjust the cutting height to your desired level using the height adjustment levers. Review safety features and controls in the owner's manual before first operation. Start the engine according to the specific instructions for your model (typically prime 3 times, then pull the starter cord). Most Costco mowers require minimal assembly compared to budget models from other retailers. The process typically takes 15-30 minutes and requires no specialized tools beyond basic wrenches. What Gas Lawn Mower Features Should You Look for at Costco? When shopping for a gas lawn mower at Costco, prioritize these valuable features: Self-propelled drive system for easier operation, especially on slopes or larger properties Variable speed control that adjusts to your walking pace Mulching capability to return nutrients to your lawn and reduce bagging 3-in-1 versatility (mulch, bag, or side discharge) for different seasonal needs Deck wash port for easy cleaning of the underside without tipping Quick-adjust height settings that change all four wheels simultaneously Larger rear wheels (10-12") for better maneuverability over uneven terrain Comfort-grip handles with vibration dampening for reduced fatigue Easy-start systems like Honda's Auto Choke or Toro's Guaranteed-to-Start promise Blade brake clutch that allows the engine to run while the blade is stopped Larger fuel tanks for extended runtime between refills Engine brands known for reliability (Honda, Briggs & Stratton, Kohler) Costco models typically include more of these premium features as standard equipment compared to similarly priced competitors. The best value is often found in mid-range models ($399-$599) that balance features and durability without unnecessary extras. Do Costco Gas Lawn Mowers Come With Oil? Most gas lawn mowers sold at Costco come with the initial oil already added to the engine. You should still check the oil level before first use as shipping and handling can cause leakage. The included oil is typically SAE 30 or 10W-30, suitable for the break-in period of a new engine. Mowers do not come with extra oil for future changes, which you'll need to purchase separately. The first oil change is recommended after 5 hours of operation, so plan to purchase oil shortly after your mower purchase. Costco seasonally stocks lawn mower oil in their automotive section, typically at competitive prices. Some premium models include a small bottle of oil stabilizer for storage, but this isn't standard across all models. Other consumables like spark plugs, air filters, and fuel stabilizers are not included and must be purchased separately. Where Can You Service a Gas Lawn Mower Purchased from Costco? Costco does not provide in-house service or repairs for lawn mowers purchased at their warehouses. Warranty service must be performed at manufacturer-authorized service centers, which can be located through the manufacturer's website. For Honda mowers, service is available at Honda Power Equipment dealers and many independent lawn equipment shops. Husqvarna and Toro have extensive service networks through both dedicated dealers and authorized repair centers. Some mobile repair services will come to your home to service Costco-purchased mowers, often at a premium price. Costco's Concierge Service can help direct you to appropriate service centers during the first two years of ownership. For out-of-warranty repairs, any qualified small engine repair shop can service Costco mowers as they use standard components. Replacement parts are widely available through the manufacturer, online retailers, and local repair shops. People Also Ask: How much cheaper are lawn mowers at Costco compared to other stores?Costco gas lawn mowers are typically 10-15% cheaper than identical models at other retailers. Premium models like Honda and Toro often show the largest savings, sometimes reaching $100-$150 below competitors' prices. Executive members save an additional 2% through the reward program, further enhancing the value. Do Costco gas lawn mowers come fully assembled?Costco gas lawn mowers require minimal assembly, usually just unfolding and securing the handle and attaching the grass collection bag. Most models come with oil already added and take 15-30 minutes to set up without special tools. This partial assembly is more convenient than the extensive assembly required for mowers from many other retailers. Can you use Costco gas station fuel in a lawn mower?Yes, Costco gas station fuel is suitable for lawn mowers as it's regular unleaded gasoline with approximately 10% ethanol content. This meets the requirements for most lawn mower engines, though the high-volume pumps can make filling small gas cans challenging. For optimal performance, especially in equipment that sits unused for extended periods, ethanol-free fuel is preferable but not necessary. Does Costco sell gas lawn mowers year-round or seasonally?Costco sells gas lawn mowers seasonally, typically stocking them from March through July depending on regional climate. Southern locations receive inventory earlier and northern warehouses may carry stock longer into summer. Limited online availability may extend beyond in-warehouse offerings, but Costco does not maintain lawn mower inventory during fall and winter months. What is the best gas lawn mower brand sold at Costco?Honda consistently rates as the best gas lawn mower brand sold at Costco, with superior reliability, cut quality, and longevity. Their models typically cost $100-$200 more than comparable options but last several years longer with fewer repairs. Toro offers the best value in the mid-range segment with innovative features like Personal Pace self-propulsion and SmartStow vertical storage.