Originally Posted By: Mickxalix
Yeah I'm going to see my local NAPA and talk to them.I have a car with insane compression and turbo. Manufacturer says that I need to change oil each 5k km on full syntectic. I gave up Ilsac -gf5 and I'm only going to try and find an oil with API SN and VW 504.00 or 507.00. I want a clean sludge free engine with the most proction. Protection will be from the Mos2 which even aircraft use in their engines because of high temps.
You are making things exceedingly and unnecessarily complicated for yourself. Now, you want a 5w-40 with SN, and 5,000 km intervals according to manual recommendations. Okay, fair enough. You wish to follow what the manual asks for. Where in your manual does it call for Mos2?
If you want to follow the manual directions to the letter, you have a few options, and the first part is getting rid of the additive, because OEMs don't call for additives. Then, get yourself Pennzoil Euro 5w-40 from NAPA. It won't be cheap, but it will be 5w-40 and in SN. Another option is Delvac 1 LE 5w-30 from Imperial Oil, which is also a synthetic SN, and a heavier 5w-30 than an ordinary ILSAC 5w-30. Neither of those lubes require any additives.
If you don't wish to follow manual instructions, you might as well go with Mobil 1 0w-40 or Castrol 0w-40 A3/B4, both of which are great lubes and can be found on special regularly at Walmart, Canadian Tire, Partsource, or NAPA Canada. You'll still save money by avoiding the additives.
If you want to do well and cheap, right now, Pennzoil Platinum 5w-30 SN/GF-5 is on sale at Walmart for under $30 for a 4.73 L jug. Buy all you can carry.
As for the additive, just because something might be "used" in aircraft doesn't mean it's always used in aircraft, or even a good idea in aircraft, or that such an experience would be transferable to a passenger car. Leaded aviation fuel and a low zinc monograde are common in aircraft. Don't try them in your car.