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Here are the results from my latest and past 2 UOA's. I am happy about the drop in copper but a little concerned about the rise in Chromium. Any input reguarding my #'s would be appreciated. I drive this car hard. It sees WOT in first and second gears daily. I am using a stock paper air filter...

Gary, Reguarding the silicon... A virgin analysis of German Castrol shows Silicon at 4. Does this make my Silicon results closer to what you had in mind for this engine? Larry

Dave, I made a mistake on the oil filter info... A k&n was used in my Dodge not the Goat... For this fill on the Goat I used a Purolator pure one oil filter. Does it seem like there is a oil flow rate issue to you? Perhaps that's why the German Castrol did not do as well as I expected it would...

Oil Type Castrol 0w30 / Mobil 1 5w30 MI/HR on Oil 5,000 / 5,000 MI/HR on Unit 28,000 / 23,000 Sample Date 12/26/07 -1/28/2007 Make Up Oil .75 qts /.75 qts ALUMINUM 6 / 7 CHROMIUM 1 / 1 IRON 24 / 26 COPPER 87 / 83 LEAD 7 / 6 TIN 1 / 1 MOLYBDENUM 15 / 80 NICKEL 2 / 2 MANGANESE 1 / 1 SILVER 0 / 0...

I added 3/4 of a quart at 4k miles. I commute 60 miles a day 5 days a week in this vehicle. I do not baby this car other than letting it fully warm up before putting a heavy load on the engine and keeping it maintained. It sees WOT and gets close to red line in first gear almost daily. Thanks...

Here are the results of my first oil analysis. I stumbled across this board and was hooked. My GTO has 23k miles, I have used Mobil 1 5w30 for all previous oil changes, Stock Air filter, Purolator Pure 1 oil filter. I am giving Gold German Castrol a try for my latest oil change and will run an...