I am a very happy user of Sea Foam in my gas. I drive a 4.0L V8 2000 Jaguar XK8. But this time I decided to add it to my oil before changing it. Unfortunately, I got mixed up and I put twice as much Sea Foam as recommended (one full can to a 7qt crankcase). I have not started the engine yet in fear of having made my oil too thin or to prevent any other problem. What do you recommend? I think I can still add another quarter of a heavier oil to compensate the viscosity, use it for a 100 miles to get the systems cleaned and then change the oil.