Well I just did a search of my local Distributors within a 100 mile radius of my location to price the 5gal Pails of the Chevron All Weather THF, and the prices were bordering on the $200 mark, which is outrageous, And since I can purchase Two 1-Gal jugs of the John Deere J20D on Amazon for...
I Emailed Chevron and asked the question if they made the Hy-Gard Fluids for them, and they Replied with the following.
Our Chevron (All Weather THF Full Synthetic) is "John Deere Hy-Gard J20D", Our Chevron (THF-1000) is "John Deere Hy-Gard J20C".
They would not give into any further details...
That's what I was thinking, from what I have read the J20 is a Lighter Weight 10w-30 oil that is more or less designed for the Cooler Northern Climates, But the J20C is a heaver weight, which should be a better pick for my Hot Southern Region, and even your area if you do most of your mowing in...
I just Purchased a new John Deere X370 Riding Mower, anyways it recommends using the JD (J20D Low Viscosity Fluid) in it, which is a Fluid designed for more Northern Climates, But since I live in Florida where the average day time Mowing Temperatures are in the High 90+ in the Summer months...