1 High Mileage Full Synthetic Motor Oil 5W-30, 5 Quart

What can I say? It's Mobil One. I now have 305K on my truck and used this since day one. Not one issue and I borescoped my motor and it looks brand new inside. No BS

The oil made my 4N15 turbo diesel much quieter than Amsoil 5w30 Max Duty. It is running much smoother than before. I have also tried Hot Shot Secret 10w-40, but Mobil 1 felt much smoother and quieter and is much cheaper. I will be ordering again.

Mobil 1 Advanced Fuel Economy Full Synthetic motor oil has been consistently reliable in my experience. It pours smoothly, performs well in both cold starts and normal driving conditions, and helps the engine run quietly and smoothly. Oil changes using this product show good oil condition even after extended mileage, which reflects its strong protection and high-quality formulation. One of the biggest advantages is its reputation and consistency—Mobil 1 is widely trusted, and this oil meets or exceeds manufacturer specifications for many vehicles. It’s especially well-suited for daily drivers looking for dependable protection and potential fuel economy benefits without overthinking oil choices. The main downside is the price compared to conventional or store-brand synthetic oils, especially when not purchased on sale. However, given the performance, engine protection, and peace of mind, the cost feels justified. Overall, this is a solid choice for anyone who wants a proven, high-quality full synthetic oil for regular maintenance. It delivers consistent results and long-term reliability.

I use Mobil 1 Advanced Fuel Economy 0W-20 in my vehicle, and it performs exactly as expected. The oil flows smoothly on cold starts, provides excellent engine protection, and helps maintain good fuel economy. It’s easy to pour, doesn’t leave residue, and keeps my engine running clean and quiet. For anyone looking for full synthetic, high-performance motor oil, this is a solid choice.

I use Mobil 1 Advanced Fuel Economy full synthetic in my Toyota 4Runner and it’s been great. The engine runs smooth, starts up easily, and I’ve never had any issues between oil changes. It’s one of those “not exciting but important” purchases that I don’t mess around with. What I like: • Smooth, consistent performance in my 4Runner • Easy cold starts • Reliable quality and easy to find • Gives me peace of mind for regular maintenance I’ve used this for multiple oil changes and plan to keep sticking with it.

I've always had great luck with Mobil 1 synthetics. Good product at a good price. I typically change oil every 5000 miles even with the synthetic and all of my cars have always reached 200k+ miles. Like they say, oil is the life blood of a car and Mobil 1 certainly proves that to me

This motor oil is a good value for the money. I’ve purchased it several times and use it every 5,000 miles when changing my oil. It functions exactly as it should, and I haven’t noticed any unusual engine noise when using it. The oil has a beautiful golden color when poured and helps extend the life of my engine. One container is sufficient to fill my car’s requirements. Pros: Good value for the money Smooth engine performance with no unusual noise Beautiful golden color Helps extend engine life Cons: None observed Conclusion: Overall, this motor oil is reliable, effective, and convenient. It’s a solid choice for maintaining engine health and performance.

Yes, I know what the label says. “European Car Formula.” Yes, I put it in a 2002 Subaru WRX bugeye with an EJ257 block and EJ205 heads. And yes—this oil absolutely slaps. This engine is not stock, not delicate, and definitely not living an easy life. It sees spirited driving, boost, and the occasional questionable decision. After switching to Mobil 1 0W-40, cold starts are smoother, oil pressure is rock solid, and the motor just feels happier. No weird noises, no drama, no oil consumption surprises. The viscosity is perfect for a performance Subaru build, especially if you’re running tighter tolerances or want strong protection under heat and load. It’s thick enough when hot, flows great when cold, and inspires confidence every time I turn the key. Is it technically “European”? Sure. Does my Subaru care? Not even a little. If you’re running a built engine, turbo setup, or just want a proven, high-quality oil that punches above its weight, this stuff earns its reputation. My bugeye may not be European, but it’s living its best life on this oil. Would absolutely buy again—passport not required.