I looked at this product once and when I wanted to edit my review it wasn't there. The product works as advertised, the engine keeps running when stopped and in my case stays in V6 mode. I've read reviews that said the battery died, but not in my case. Some have reported that not all LRD lights have gone out. Not in my case either. I read reviews from various websites before buying from Revain. My application is a 2017 Cadillac XT5 that I recently bought with about 44,000 miles on it. I also poured a bottle of Royal Purple MAX Scrubber into the tank. I have been using this product for many years and am very happy with the results. After 2 weeks the car started to work more smoothly. Maybe an illusion. I'm not an engineer, but I personally believe that constantly cycling the motor on and off reduces life expectancy. The cylinders are off, the pistons keep turning. It's just my 2 cents. If anything happens to the block I'll let you know.
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