I just found out today that yesterday my wife added regular oil because it was low, instead of synthetic oil to the S2000, now is late Sunday there

 

What's wrong with regular oil? That's what the car comes with.

 

I'm impressed with a wife who puts oil in cars.

 

There is NOTHING to worrie about.
NO NEED to flush / replace the oil.
Syn and regular (dino) oil may be mixed without any problems.
Only in certain specific circumstances there MAY be a very tiny "conflict" between additives, in a way that they don't work as well as they should.

Only a small amount of regular oil was added,so, again: nothing to worrie about.
Just keep driving the car.

Keeping your eye on the level is way more important.
And that was done perfectly

Have FUN

 

Amen to that. Give her a wrench and let her share the joy! Rare is the spouse who has the love.

Once upon a time, the story was that you shouldn't go back and forth from synth and dino oil fills. I don't think this is still true, but I'm not positive. I wouldn't recommend it, mind you, but I don't think it's a big deal.

As for topping off with a little dino... Don't sweat it!!!

 

flush it yourself

 

I think you should give the car to your wife and find yourself something else to drive!!

Nothing to worry about.

 

Drive the car and have fun, it won't make a bit of difference that regular oil got mixed with synthetic (ever heard of synthetic-blends?).

 

[QUOTE=chinba82,Jan 7 2007, 03:23 PM] I just found out today that yesterday my wife added regular oil because it was low, instead of synthetic oil to the S2000, now is late Sunday there

 

You should buy your wife something nice for helping prevent your engine from getting destroyed by low oil levels.

Far more important to have enough oil than what type of oil....