i utilized to drag race 6-7 situations a night.i dont have an oil cooler and my past oils lasted only 300miles max till they grew to become h2o like.this lasts 1.5k miles with my driving.the 20w50 which in fact doesn't have the w..it really is 2050. it functions similar to a 50 when its very hot but it doesnt have a substantial viscocity transform