- Apr 15, 2020
- Roy, UT USA
Hello all. I have a John Deere L120 Mower/tractor I purchased new and I have always used John Deere's Turf Guard 10-30 in the engine as per the manufacturer recommendations. I know several people use Mobil 1 and other synthetics in their mowers and other small engines so I decided to switch over to synthetic for it and saw that O Reilys had Mobile Super on a closeout so I bought a 5 quart container planning on using it in the mower. Well longer story short I am wondering if I should use something else or if this Mobil Super is okay to run? The tractor has 350 hours on it and runs great, no issues. Thanks in advance for your input.