Shell Rotella T4 Triple Protection 15W-40 Motor Oil, 1 Quart (6 Pack)

I've been using this in a commercial Toro zero turn mower in a hot southern climate. This machine has an older Kohler 650 CC air cooled overhead valve engine that requires 10w30 conventional oil per the manufacturer. I can say that after using this oil the engine temperature is lower and the engine noise is less as well. Oil seems to hold up longer between oil changes than the Castrol oil I was using previously. I highly recommend this oil. The price point is excellent.

Few years ago a tornado came through our area and damaged a lot of power lines and a power station that fed all of the lines to my parents house. They were without power for weeks. My dad was very sick and few months from passing and my mom didn't really know much about small power equipment. So I would set the portable predator generator up, fuel it up, my mom would just fill the generator back up and immediatly start it again. Every few days I would stop by, bring more fuel, and change the oil with this oil. When I would check the oil collection pan I never saw any flakes or anything, which is rare for a splash style engine with no filter. You will usually see a little metal flake. Nothing. For two weeks the generator was only shutdown to refuel or change oil. The spark arrestor was nearly stopped up, but I cleaned that out, put a new plug in, changed the oil, and put it back in storage. During that time period it never was low on oil, and doesn't burn a drop to this day. I attribute that to a good heavy duty oil. I keep about 6 jugs on the shelf at all times just in case I got to do this again, thats how much I trust it.

Good deal. Run T4 in both my diesels and my 1970 GMC's 350.

Some of the best out there, especially for the classic cars and truck. Been using this stuff for years, wouldn't have it any other way.

Used in my jeep Cherokee 4.0 2001 works great, improved oil pressure, has zinc flat tappet cam. clean oil it should last.

Excellent diesel engine oil! Provides strong protection, reduces wear, and keeps my engine running smoothly. Great for heavy-duty use with reliable performance in all conditions. Highly recommend for diesel owners!

I have always used this product for my 2009 Dodge Ram diesel pick upHas worked very well. Shipped on time too.

Good product for the price! Gets the job done