I've got an 06 S2000. After thinking I was done with autocrossing for the year, I signed up for one last event. I had already put my stuff away and had to throw together my box of crap in the morning. Unfortunately, I grabbed the Gear Oil instead of the Engine Oil. Darn Ams-Oil putting both in the same bottle. I run Ams-Oil signature series 10W-30 normally. Gear Oil was Ams-Oil Sever Gear 75W-140.
Right before I went to run, I checked my oil. Oil was a little on the low end of the acceptable window so I went to top up just to be safe. I started pouring and realized very quickly the fluid didn't look right. I only put in less than 1/10 a quart before pulling it off. My oil capacity is about 5 quarts. Therefore, the mix had about 2% gear oil.
I was a few hundred miles from home. I ran the event as normal and then drove home for a total of 500ish miles. I changed the oil 6 days later and dumped an extra quart through the pan to clear things out. This change had about 6200 miles on it total. I ran the interval longer based on a previous BlackStone UOA.
Any concern here? I know there's some concern about cold starts with thicker fluid, foaming, different additive packages, and possible acidic build-up eating yellow metals. Given that I only put 1/10 a quart in and ran it for 6 days, is there really any reason to worry? I checked at the dipstick and oil fill to make sure no obvious foaming was happening. I also did see that synthetic gear oils will typically not become corrosive as quickly. I think I only had 4 cold starts on it, with the gear oil in it too. I was a bit paranoid but I think it's probably of no concern. I am sending out a sample to Blackstone as well.
Right before I went to run, I checked my oil. Oil was a little on the low end of the acceptable window so I went to top up just to be safe. I started pouring and realized very quickly the fluid didn't look right. I only put in less than 1/10 a quart before pulling it off. My oil capacity is about 5 quarts. Therefore, the mix had about 2% gear oil.
I was a few hundred miles from home. I ran the event as normal and then drove home for a total of 500ish miles. I changed the oil 6 days later and dumped an extra quart through the pan to clear things out. This change had about 6200 miles on it total. I ran the interval longer based on a previous BlackStone UOA.
Any concern here? I know there's some concern about cold starts with thicker fluid, foaming, different additive packages, and possible acidic build-up eating yellow metals. Given that I only put 1/10 a quart in and ran it for 6 days, is there really any reason to worry? I checked at the dipstick and oil fill to make sure no obvious foaming was happening. I also did see that synthetic gear oils will typically not become corrosive as quickly. I think I only had 4 cold starts on it, with the gear oil in it too. I was a bit paranoid but I think it's probably of no concern. I am sending out a sample to Blackstone as well.