nola000

The oil was overfilled by about 24.5 oz(3/4 qt) or 8.8% over capacity, brake fluid over by 2 oz. or 11.8% and power steering fluid over by 2-3/4 oz or 9.5%.

Any chance of any long term damage or reduced life from having driven like this?

Any chance the overfilling of the oil was why I couldnt get better than 27 mpg on the highway driving like a mum-maw?

Amir_AMG

unless you have visual signs of oil leaks around the engine and components, you should be ok. glad you got rid of it sooner than later

ilumunus

Depends how long they were like that for, or if they've been overfilled it's whole life. But, if you take care of it from now on, you should be OK.

dolvio

Those excess amounts would cause zero damage. Cars in general are not this sensitive. If cars were damaged this easily, there would be cars all over the place failing due to this scenario's such as this. We are talking about machines here designed to endure extreme cold, heat, long trips, and abuse for hundreds of thousands of miles. They are not this sensitive.

Don't even think about it.

nola000

Thats good to know.

I had read in the past about blowing out seals in PS pumps from overfilling and something about foaming when putting in too much engine oil.

dolvio

Yup absolutely. But only if you added say another 4 litres or something. Even then probably not. Crankcase and engine is, again, not that sensitive that a little extra will even make the slightest difference. Honestly man, don't worry at all about it.