zeroptzero

excellent, good to hear engine noise isn't much different, I know mine changed dramatically for the better when I went the other direction to a thicker oil.

You said the sample would be sent at 12k, you must mean a 12,000 mile interval, not that you will send it when your car reaches 12k correct (that would only be a 1k interval). Just checking.

Look forward to future information on this post, good luck. Let us know if the car feels any different driving it too.

Gernby

I should have mentioned that my valves are adjusted tighter than the minimum spec, so would probably be quieter than most anyway. I'm all about reducing the OEM slop wherever I can!

I did mean to say that I would send a sample for UOA at 12K miles on the odometer (1K interval), so that I can gain some comfort that I'm not toasting my motor with the thinner oil. I will make a decision about how long I will leave this oil in based on that UOA.

zeroptzero

oooh, that is an expensive oil change for 1k. See if you can just crack open the drain bolt for a couple of seconds, get a quick sample and close the bolt quickly, then top it off and run it further. And send in the sample as you drive it furher. A 1k interval might not reveal much as it is so short. Some guys can take a sample out of the dipstick hole with a a hose and suction but I've never done it. But I can understand wanting to be safe, perhaps consider a 2,000 mile sample as I highly doubt you can hurt an engine by such an oil in a such an interval. Good luck either way.

Gernby

I was only going to take a sample at 12K, not do a full oil change. My plan was to install an oil drain valve when I did the swap over the weekend, but I didn't order the extension adapter that is needed. My current plan is to:

1) Get the needed drain valve adapter
2) Remove the OEM drain plug and let the oil drain into a clean container
3) Take a sample while the oil is draining
4) Install the drain valve and adapter
5) Pour the drained oil back into the engine

Since I plan to do track events this year, and don't feel comfortable using 5W-20 for them, I plan to swap and reuse oil before / after each track event using the method above.

marcucci

Now THAT is being an anal enthusiast.

Gernby

I agree that it's anal, but why not have a "track oil" and a "street oil", just like brake pads? The more I think about it, the more it seems like a great idea!

zeroptzero

yeah that should work , just let the oil settle for a few hours so you don't pour sediment back over the valvetrain on the re-fill. Yeah I would not run 20 weight on track events, good call.

marcucci

I see a new mod: wing-bolts for the oil pan, and a quick-changeover of the pan at the track.

Gernby

Brilliant!

WTB: F22C oil pan!

Gernby

I just hit 12K miles, so I took a sample today, and will send it to Blackstone Labs on Monday.