I bought the vp for household cleaning too which would be nearly impossible for an optima. I've only had the vp at 1/4 of its pressure & it's pretty damn powerful. Haven't actually used it on my truck since it's cold, rainy & snow coming soon but will update once i do
Brief review since I haven't tried it on my truck because it's too damn cold outside & I don't have an indoor garage. Only used it to clean my bathroom, couch & kitchen floors so far. 1st impression was how rugged the actual machine is & it literally is build like a tank. Start up to operating...