So I tried fueling 94 Octane gas on my 2019 ES300h UL last week
08-11-22, 06:17 AM
#1
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Thread Starter
So I tried fueling 94 Octane gas on my 2019 ES300h UL last week
Just wanted to share my experience and what I noticed:
Last week, one of my local gas station, Petro-Canada, temporary ran out of 87 gas, so they matched up the price for the 91 and 94 gas. To my knowledge where I am from, Pero-Canada is the only chains that sells 94 gas. I decided to pull the trigger on the 94 since it was all the same price. Usually during Summer, I will put gas after 2 weeks on Friday after work. At that time, the gauge will be at around 3/4 empty.
After fueling with the 94 gas, I noticed 2 things:
1) The steering wheel suddenly got tighter (and for the entire week). During my 3 years ownership of the car, the steering wheel would sometimes get tighter if I hit a bump/hole during a turn (not sure why), but it will usually adjust itself back on the next drive. I usually like my steering ''softer'' with more play.
2) The engine seems to struggle more than usual. I really thought it was going to me smoother with a teeny tiny bit of better acceleration, but boy I was wrong. It feels like I had 2 adults passengers in the back while driving. The big thing is that after 1 week of driving on Friday, the gauge was already below 1/2 of the tank.
The commute to work is mostly on highways and I always set my Cruise Control at 108km/h (67mph). I also start work earlier than everyone else, so I don't get stuck in traffic. The situation seems so strange to me and it's not like it was an unknown gas station in the middle of nowhere (it is a big gas station with 10 pumps near a crowded highway). Most of the time, I will put 91 gas in my car (never noticed a problem) since some of the local gas station near I live would have these deals on certain days where the price of the 87 gas is the same as 91 gas (Most of the time, I would be like why the heck not). Not really sure what causes these 2 things (the ethanol content?), but one thing for sure, I will never put 94 gas again.
Last week, one of my local gas station, Petro-Canada, temporary ran out of 87 gas, so they matched up the price for the 91 and 94 gas. To my knowledge where I am from, Pero-Canada is the only chains that sells 94 gas. I decided to pull the trigger on the 94 since it was all the same price. Usually during Summer, I will put gas after 2 weeks on Friday after work. At that time, the gauge will be at around 3/4 empty.
After fueling with the 94 gas, I noticed 2 things:
1) The steering wheel suddenly got tighter (and for the entire week). During my 3 years ownership of the car, the steering wheel would sometimes get tighter if I hit a bump/hole during a turn (not sure why), but it will usually adjust itself back on the next drive. I usually like my steering ''softer'' with more play.
2) The engine seems to struggle more than usual. I really thought it was going to me smoother with a teeny tiny bit of better acceleration, but boy I was wrong. It feels like I had 2 adults passengers in the back while driving. The big thing is that after 1 week of driving on Friday, the gauge was already below 1/2 of the tank.
The commute to work is mostly on highways and I always set my Cruise Control at 108km/h (67mph). I also start work earlier than everyone else, so I don't get stuck in traffic. The situation seems so strange to me and it's not like it was an unknown gas station in the middle of nowhere (it is a big gas station with 10 pumps near a crowded highway). Most of the time, I will put 91 gas in my car (never noticed a problem) since some of the local gas station near I live would have these deals on certain days where the price of the 87 gas is the same as 91 gas (Most of the time, I would be like why the heck not). Not really sure what causes these 2 things (the ethanol content?), but one thing for sure, I will never put 94 gas again.
08-11-22, 06:42 AM
#2
Lead Lap
Hmmm. I don't think that your fill up changed the steering and as far as being sluggish goes, that either... Perhaps you got a bad load of gas... Try to stick with what Toyota recommends and that is 87 octane... However a tank of 94 won't damage your engine either just cost more...
08-11-22, 07:40 AM
#3
Nothing in the steering system is connected to anything in the fuel system, so I do not see how the steering could in anyway be directly affected by a change in octane rating.
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Oldfart (08-11-22)
08-11-22, 08:16 AM
#4
OP's Comment #1 immediately disqualified the entire post lol
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Oldfart (08-11-22)
08-12-22, 07:11 AM
#6
Lexus Test Driver
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08-12-22, 10:45 AM
#8
Lead Lap
Also a similar feeling that your car runs better when it's washed and waxed... 
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GS350Miami (08-13-22)
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bc6152 (08-13-22)
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