This is my long team observation that I discover unconscious.
Gas station that I use are Shell and Philips.
I have a 95 Toyota Camry that I bought a little bit more than 2 year ago. When I bought it, it had 93000 miles.
I only use 93 because I have good result on Subaru Legacy and Mazda Miata, so I do the same to this Camry. Recently the gas is so ridiculous high, so I decide to degrade to 87. I find little to no difference how the car run. I think this car is just a waste to run 93, but I find that my fuel gauge know the difference...
When I used to pump 93 to a full tank, the needle is always over the full line (every tank, no exception). After I switched to 87, the needle no longer move that far, usually sit on the full line. If I use a bottle of Regene, that tank of gas will make the needle over the full line, and continuous for couple tanks more.
From this observation, I think the only explanation is premium gas should have more additive. At least apply to Shell and Philips because I only go to 2 shell gas station and 1 Philips gas station whoever is cheaper. I think I read somewhere about Shell Premium have 5X additive than EPA standard, regular have 2X additive than EPA standard. I feel this sentence is so true...
A side note, I put Lucas UCL today and the needle did move over the full line, so I think there might be some cleaning additive. If I find something worth to post about the UCL, I will post it later.
Gas station that I use are Shell and Philips.
I have a 95 Toyota Camry that I bought a little bit more than 2 year ago. When I bought it, it had 93000 miles.
I only use 93 because I have good result on Subaru Legacy and Mazda Miata, so I do the same to this Camry. Recently the gas is so ridiculous high, so I decide to degrade to 87. I find little to no difference how the car run. I think this car is just a waste to run 93, but I find that my fuel gauge know the difference...
When I used to pump 93 to a full tank, the needle is always over the full line (every tank, no exception). After I switched to 87, the needle no longer move that far, usually sit on the full line. If I use a bottle of Regene, that tank of gas will make the needle over the full line, and continuous for couple tanks more.
From this observation, I think the only explanation is premium gas should have more additive. At least apply to Shell and Philips because I only go to 2 shell gas station and 1 Philips gas station whoever is cheaper. I think I read somewhere about Shell Premium have 5X additive than EPA standard, regular have 2X additive than EPA standard. I feel this sentence is so true...
A side note, I put Lucas UCL today and the needle did move over the full line, so I think there might be some cleaning additive. If I find something worth to post about the UCL, I will post it later.