I noticed that BP recently began to advertise their gas has 'Invigorate' which is suppose to enhance cleaning properties. I wrote them to see if they are now Top Tier and received this:
Thank you for your inquiry. The additive dosage in all BP gasolines with Invigorate exceeds Top Tier requirements and is designed to clean up deposits left behind from the use of gasoline that contain only minimum detergent. BP does not participate in the Top Tier program. Top Tier was developed by several automotive companies. BP believes that consumer interests are best served when the automotive and oil
industries work cooperatively to determine the optimal mix of vehicle hardware and fuel standards.
Try BP gasoline with Invigorate. It helps cars run younger for longer!
Sounds good but who knows.
Thank you for your inquiry. The additive dosage in all BP gasolines with Invigorate exceeds Top Tier requirements and is designed to clean up deposits left behind from the use of gasoline that contain only minimum detergent. BP does not participate in the Top Tier program. Top Tier was developed by several automotive companies. BP believes that consumer interests are best served when the automotive and oil
industries work cooperatively to determine the optimal mix of vehicle hardware and fuel standards.
Try BP gasoline with Invigorate. It helps cars run younger for longer!
Sounds good but who knows.