Historical examples. 1  Hormuz Strait between Oman and Iran at the entrance to the Persian Gulf. 2  Strait of Malacca between Malaysia and Indonesia. 3  Bab-el-Mandeb passage from the Arabian Sea to the Red Sea (Yemen and Socotra) 4  Panama Canal and the Panama Pipeline connecting the Pacific and Atlantic Oceans (British Honduras)
Rapeseed oil contains high amounts of the toxic erucic acid, which is poisonous to the body. Canola oil is an altered version, also called Low Erucic Acid Rapeseed (LEAR) and it is commonly genetically modified and treated with high levels of pesticides.
Either canola oil or  peanut oil should work great, canola oil is generally less  expensive of the two and considered the healthiest, but peanut oil  is often recommended because of the flavor it gives fried foods.   Answer2: I actually read that coconut oil is the best for frying  and olive and avocado oil are excellent choices as well.