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My Ballard Forum » Open Forum

How Much Of An Effect Does Gas Grades Have ?

(22 posts)
  • Started 2 years ago by BuffaloHawk
  • Latest reply from gracie
  1. BuffaloHawk


    I purchased a car a few weeks ago and it was on empty when I left so I filled it up with the lowest gas grade 87. When I had time to review the manual it said that it requires grade 89 and it started to run a lot smoother so yesterday I refilled with premium grade 92 @ Costco. I had the car checked out immediately and was assured that it was in great mechanical shape. This morning the engine light came on and I was wondering if the original lower grade gas could cause this reaction until it has totally gone through the tank & engine.

    Posted 2 years ago #