Accidentally put gear oil in the engine oil?

Hi,





I accidentally put a small amount (1/2 cup) of gear oil in the engine oil. Both the engine oil and gear oil in the car are Valvoline brand, so the containers looked identical. Is there anything I should worry about or is flushing the oil the only way to fix this problem? ThanksAccidentally put gear oil in the engine oil?
Gear lube isn't as thick as some oil additives like STP, but it is not designed to burn and it isn't meant to get quite as warm. The worst thing I'd be concerned about is fouling your spark plugs, and even then, I wouldn't be too concerned as long as the rest of the engine is healthy.





A little bit won't hurt because engine oil is designed to mix with contaminates. If the exhaust smell bothers you or if you want peace of mind, then drain the oil and start over again. If it were my own vehicle, (and it was only a quarter of a quart) then I'd just keep driving it until my next oil change.Accidentally put gear oil in the engine oil?
It probably wont hurt with such a small amount, but I wouldnt let it go too long without changing it, just to be sure. If you can still safely add oil, then add some of your normal stuff up to the point that it should normally be at. This will help dilute it further. But I would still change it the first chance you get.
It's a small amount but it needs to come out asap. Not only can it eat away at seals but it can have adverse affects when it mixes and cause the regular oil to lose it's lubricating ability. Do an oil change asap and you'll be fine.
that small of amount wont hurt anything it is just a heavier oil and you have 4-4.5 quarts of normal oil in there to dilute the gear oil.
flush it out asap if its not the right oil it will eat away at the seals including the valve seals





good luck