I used to drag race 6-7 periods an evening.i dont have an oil cooler and my former oils lasted only 300miles max right up until they became water like.this lasts 1.5k miles with my driving.the 20w50 which actually does not have the w..it can be 2050. it acts like a https://manuelkanan.levitra-wiki.com/849366/what_does_13b_renesis_engine_for_sale_mean