Liqui Moly 20310 Molygen New Generation SAE 5W-50-5 Liter

I recently switched over to this oil and it’s honestly one of the best upgrades I’ve made for my 2018 Mazda 3 Hatchback 2.5L. The 5 liter jug is the perfect amount for a full change, and I really like knowing it’s a high-quality fully synthetic formula that gives my engine the protection it deserves.The first thing I noticed was how much smoother cold starts became—no more of that rough, clunky sound in the mornings. The engine feels quieter overall and runs more efficiently, like it’s not straining as much. I’ve also seen fewer deposits and buildup, which gives me peace of mind about long-term wear.Another thing I appreciate is that it’s designed with modern engines in mind—safe for turbocharged setups and catalytic converters. It also blends easily with other oils, which makes topping off simple if I ever need to.Highlights for me:Excellent cold-start protection, even on chilly mornings.Noticeable improvement in smoothness and reduced engine noise.Works well with today’s engines, including turbos.Easy to mix when topping off.Overall, this oil gives me confidence that my engine is well-protected and performing at its best. Definitely feels like a premium choice that’s worth it.

I didn’t think I’d get excited about motor oil, but here we are—Liqui Moly Molygen 5W-40 has officially made me feel like a car enthusiast. If you're serious about keeping your engine purring like a kitten, this stuff is like giving it a spa day with an energy drink chaser.First off, this isn’t just any old motor oil—it’s high-tech motor oil. We’re talking German engineering at its finest. The neon green color? Oh yeah, it looks as cool as it sounds, and trust me, when you see that green oil running through your engine, you know you're in for some serious performance. 🟢💯Why do I love it?Engine protection: This oil is like a security blanket for your engine. It reduces friction like a champ, so parts glide smoothly, which means less wear and tear. Translation: your engine will thank you with better performance and a longer life.Fuel efficiency: You’re not just getting a smoother ride; you’re also saving some bucks at the pump. The way this oil cuts down on friction helps with fuel economy. It’s like the gift that keeps on giving.Cold start-ups? No problem. Whether you’re dealing with a chilly morning or scorching summer, this oil handles temperature extremes like a boss. It maintains its viscosity so your engine stays protected regardless of the weather.And did I mention the Molygen technology? It’s not just a fancy name—this oil has additives that coat your engine in a protective film, keeping it running smooth and reducing the risk of damage, even during high-stress drives.Final thought: If you're looking for an oil that’s as serious about your car’s performance as you are, the Liqui Moly Molygen 5W-40 is it. Your engine will run smoother, quieter, and stronger, and you’ll feel like you’ve just upgraded your car’s lifeblood. 🚗💨 Plus, that neon green color? Total conversation starter at the garage. 😉

This oil is amazing. I put it in my mother's car, which had been making a lot of noise, within five minutes the car was so much quieter! I then put it in my truck, which was fairly quiet to begin with, and the loudest thing under the hood was the a/c compressor! This stuff is like magic!

If you’re new to LiquiMoly and reading these reviews, I can assure you that these are the best motor oils in the world. I’ve been using various formulas and weights in all of my cars over many years, and have never experienced any major engine failures. I use LiquiMoly motor oil in combination with their Ceratec product. This particular oil, the MolyGen range, already has a friction additive in it so you don’t need to use the Ceratec. Obviously it’s an excellent oil and has kept my heavily used truck running smoothly and flawlessly. One odd characteristic of the MolyGen oils is the strange green color. You feel like you’re dumping antifreeze/coolant into your engine. I had to explain this to my dealership when I brought my truck in for service when they saw the color of the oil. Anyway, this is an excellent oil. Don’t waste your money on Mobil 1 or Pennzoil or any of that other mass produced stuff when you can buy this for a similar price.