Best Heavy Duty Vehicle Oils of 2025

"The seller was awesome and quick to respond. The product arrived exactly as described, and we absolutely love using this oil in our dirt bikes."

"I haven't done any analysis yet, but I exclusively use this oil in my mower. I found it on Amazon after struggling to find straight 40 weight oil elsewhere. Delivery was faster than expected! I trust this brand based on my previous experiences with my truck, and my mower seems to start smoother with it compared to non-synthetic options. I highly recommend it to friends!"

"I've been using the Royal Purple 01040 Heavy Duty SAE 40 High Performance Synthetic Motor Oil in my TroyBilt tractor. It outperforms the 30 weight HD oil I was using before, especially for my air-cooled six horsepower motor."

"I've been using this gear lube in all my ATVs, and it consistently looks great during changes. I've never encountered any issues. Lucas products are trustworthy."

"I purchased Lucas oil for my snow blower after seeing a highly recommended YouTube video. Although I haven't had much snow to test it, I'm excited to see how it performs next winter."

"Using this oil in the gear boxes of my Scagg Mower and my vintage Woods Bushhog has been fantastic. A refining rep explained that the real value lies in the premium additive packages. Oils today are simply better than ever."

"I've pushed 250,000 miles on my Tahoe using this oil, and I’ve had no engine problems. It’s tough to find Delo 10W-30 these days."

"I'm thrilled to find this semi-synthetic oil. I’ve had bad experiences with full synthetics before, so this is a fair price for me."

"My Briggs & Stratton 10HP generator absolutely adores this oil. It runs quieter and smoother, and I’ve noticed it runs cooler too! I also started using it in my Honda mower, and it starts on the first pull now. It's a game changer!"

"I needed to change the fluid in my rear differential for my 2002 F150 with factory limited slip. Having never used a Lucas product before, I was hesitant due to some negative reviews, but decided to try it since it meets all the specifications and was cheaper than other synthetics. The fluid had a mild odor, and I added a friction modifier to avoid chatter. After the change, the noise from sharp turns disappeared. So far, I only gave it 4 stars for now, but after a year with no issues, I’m updating it to 5 stars!"

"I've been using Lucas products for years, and they never disappoint. I find their gear oil works just as well as Redline, but at half the price. My Harley's transmissions, which are known to be clunky, shift smoothly now. I always use gear lube and haven’t experienced any slipping issues. My original clutch plates are still intact, and I’m very satisfied!"

"This is a fantastic product that delivers great value! The packaging was excellent, and given the rising prices everywhere, I firmly believe this is a steal for the value!"

"I was initially uncertain about these ramps' strength for my diesel pickup, but they exceeded my expectations. The build quality is impressive—after several uses, there's no sign of wear or fatigue. I opted for the 'Max' size that holds more weight, which is perfect for my older Ford F250."

"I purchased these ramps to lift my car during floods, and they elevate my Nissan Rogue by about 6-8 inches. Setting them up is a breeze; I can easily drive my car right onto them. They’re lightweight and conveniently store in my shed."

"These RhinoGear ramps are truly the best! They are lightweight yet strong, supporting up to 16,000 lbs. The design features rubber grips to prevent sliding and a lip at the top to keep the vehicle secure. I’ve used them multiple times for my 4Runner, and they perform flawlessly."

"I find this oil to be as good as any other options out there, and it costs less. It's perfect for my parts cleaner and engine degreaser. I stock up whenever I can!"

"For my rear tine tiller with a direct drive transmission, this gear oil is wonderful. It keeps the gears well-lubricated without breaking down. Delivered quickly to my home, saving me a trip to the store!"

"I purchased this oil for my scooter's transmission oil change, and everything seems to be running well. Happy with the results!"

"I found it worked great and was very nicely painted. It arrived in bulletproof boxing, definitely worth the cost!"

"I bought these to service my Gravely tractor. I’m a bit cautious about using them under my truck, as there’s no reinforcement, so I plan to add some rebar for extra safety."

"I purchased this for my husband, and he is ecstatic over them. It was a perfect gift!"

"I have a low profile Mustang and needed something to fit easily under the front fender. These ramps worked perfectly! They're incredibly sturdy with absolutely no wiggling. I get about 6.5 inches of height, which is crucial for my car. They're lightweight and easy to move around. For the price, I believe they're a perfect option, especially for low profile cars."

"I've used these ramps for my wife's 2022 Explorer ST and my lowered Mustang GT, and I couldn't be happier. They hold their position well, and I can back up on them without any issues. Plus, the ability to remove the ramp when the vehicle is in place is very convenient. These ramps are truly handy!"

"When I was ready to change the oil on my 2021 Toyota Corolla, I was concerned about the low clearance. Thankfully, these ramps provided just over 6 inches of additional clearance, making it easy to access the drain pan and the access panel. They are perfect for low-clearance vehicles, and I'm sure anyone with a similar vehicle will appreciate them."

"I always use this additive in my vehicles. Absolutely no complaints."

"For my 2008 BMW X5, using Lucas oil stabilizer with every oil change has noticeably improved engine quietness and reduced friction."

"My 97 Expedition used to burn oil, but adding this as the last quart during oil changes has helped slow down oil consumption."