Im with the others who said use the manufacturers recommendation. Especially if it is still under warranty. That said 15-w40 has been around for some time and I know some that use that oil in everything on the farm, from their largest diesel tractor to their lawn mowers. I would have a hard time putting 15-W40 in my 2020 Ford 6.7 diesel since Ford recommends 10-W30 for diesels or my JD Gator that uses 0-W something. The moral of the story is things have changed.
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Today's Featured Article - On the Road with Dave Gohl: Deere Departed Friend - by Dave Gohl. Have you ever had to part with a dear friend? It's not easy. If it's due to death, your feelings could be in disarray for days, months or even years. Even now after almost 4 years, I still miss my dad. I remember when I was a kid my dad sometimes would tuck my brother and I in at night and we would ask him questions about his childhood on the farm. To this day, it's some of the best stories I've ever heard. And now, I'm so glad that I asked those questions, and if I were a little smarter i
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