Walnuts do not contain all of the amino acids your body requires. While the nuts have a high concentration of amino acids such as tryptophan, valine, leucine and threonine, they lack others like methionine, alanine and proline. Because of this, walnuts are considered an incomplete protein.
Quick Answer. The standard oil change cycle on a Harley-Davidson is every 3000 miles. Oil changes usually depend on the riders preference as some owners may wait as long as 6 months before changing their oil. Continue Reading.
Normal oil change: I use the best synthetic oil I can lay my hands on and dump it every 4000kms (2500 miles) religiously. After many, many hours scouring the net for info I believe the best synthetic oil for your Harley is either Amsoil or Mobil 1.