I used to tug race six-seven instances an evening.i dont have an oil cooler and my previous oils lasted only 300miles max right until they became water like.this lasts 1.5k miles with my driving.the 20w50 which in fact does not have the w..it truly is 2050. it acts similar to https://elevemotors.com/product/jdm-toyota-3sgte-engine-for-sale/