I used to tug race 6-seven periods an evening.i dont have an oil cooler and my earlier oils lasted only 300miles max until they turned water like.this lasts 1.5k miles with my driving.the 20w50 which really does not have the w..it really is 2050. it functions like a fifty when https://jdmhondacr-vk20aenginefor24578.bligblogging.com/29269516/the-smart-trick-of-jdm-toyota-4a-ge-that-no-one-is-discussing