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*Due to its superior cohesive and adhesive properties Ultra Red Supreme is not recommended for use in passenger car automotive wheel bearing applications.

I've been using Shaeffers Deisel Treat #137nd for probibly 20+ years. I've had no injectors problems or any fuel relateed problems. I use it year round every time I add fuel. I run all 48 states, Canada & Alaska. I don't use the Winter Blend. When I need extra protection for cold temps I add...