I used to pull race six-7 situations a night.i dont have an oil cooler and my prior oils lasted only 300miles max until finally they turned h2o like.this lasts one.5k miles with my driving.the 20w50 which in fact doesn't have the w..it is actually 2050. it functions just like a https://elevemotors.com/product/jdm-toyota-2jz-gte-vvti-for-sale/