I thought i would let you know the reason i use valvoline is i researched some of the oil's on the internet and found that valvoline provide's more oil's that are very high in Zinc & Phosphorus. Espeacially the VR1. oil's One of the VR1 oil's is a street legal oil. I gaurantee you that will make it run good.....But alway's stay with the proper weight grade oil's.....Here in Texas My location it is difficult to find the 10w30 grade but there is one place....