I heard about high-oleic sunflower oil which has a lot less PUFAs than regular sunflower oil, about 4% according to nutritiondata. A close look shows that the n6:n3 ratio is 36:1 but perhaps with such low content that's not as important. Olive oil has 11% with 10:1 ratio, again according to nutritiondata.
With these properties I wonder if it wouldn't make an excellent oil for mayonnaise. Olive oil just tastes too strong and I wonder about the purity/health aspects of the lighter-tasting olive oils.
So, is high-oleic sunflower oil paleo?
I haven't found pure high-oleic sunflower oil for sale over here in Belgium yet though. I only found mixed oils which boost the PUFA back to 30% for some reason :-( Are they easy to find for sale in the US?
Update: I found some for sale in France, and just made excellent mayonnaise with it :-)