Most synthetic oils will measure the full band of viscosity when tested by an independent laboratory. I think the only reason people like Mobil1 rate them is to meet manufacturers specs. I think Corvette engines specify a 5w-50 and the Mercedes 3.6L diesel wants a 0w-40. It's crazy but synthetic oil is a product that is still way advanced. It can withstand temperatures and pressures that the metal components of the engine can't tolerate.
WHAT STOPPED THE LIFTER NOISE 2011 DODGE GRAND CARAVAN
Over a year ago, I had to get one of the heads opened in order to replace #3 and #5 rocker arms. Well about 6 months ago, I started having the ticking noise again. I put up with it for a month or so,
I found a video on Youtube that was talking about using Marvel Mystery Oil and although I have added it oil before in small amounts, I had never used as much as a quart. Mostly, I put it in the fuel tank. This time instead of using 6 quarts of synthetic oil, I used 5 quarts and used 1 quart of Marvel Mystery Oil. After about 3 days the noise stopped and has not come back for over 3 months. Every oil change I started to do the same thing. At first I was using 5w30 and the last time to 5w20 but, I think i will go back to 5w30 because the Mystery Oil is real thin. BTW it smells really good also..
I found a video on Youtube that was talking about using Marvel Mystery Oil and although I have added it oil before in small amounts, I had never used as much as a quart. Mostly, I put it in the fuel tank. This time instead of using 6 quarts of synthetic oil, I used 5 quarts and used 1 quart of Marvel Mystery Oil. After about 3 days the noise stopped and has not come back for over 3 months. Every oil change I started to do the same thing. At first I was using 5w30 and the last time to 5w20 but, I think i will go back to 5w30 because the Mystery Oil is real thin. BTW it smells really good also..
