"Premium Fuel recommended"... but do I have to? With high gas prices, we look for advice. 

There is a lot of misinformation in this video. 85 octane should not be used in a flex-fuel vehicle, 85 octane is sold at higher high altitudes because it's cheaper and carburetors tolerate it well with the lower atmospheric pressure, it is not the same as E85 (85% ethanol). If a motor is tuned to run on 87 octane you will see little to no benefit going to a higher octane. Several newer vehicles that are tuned to run on premium can detect the fuel octane and will "de-tune" themselves to prevent misfires and engine knock with regular, thus "recommended" vs "required." You lose power and efficiency, but don't damage the engine as long as you meet the "required" octane. Regardless of the octane you use, you should always quality gas. I do agree with recommending top-tier certified fuel due to the additional cleaners. Some companies only certified their "premium," while others certified all of their fuel. Bottom line read your vehicle manual for the minimum required fuel octane, and get your gas from a good source. Regarding the warranty, if they say the required octane is 87, it is unlawful for them to void your warranty for using 87 octane. However, even if you're using premium they can deny warranty claims due to damage caused by "bad" gas.

35 minute video to answer a simple question...LOL

Wow, agree that there is a lot of misinformation presented. Couldn't finish watching.... "...the lower the number the higher resistance that it has to burning..." The octane number is the ability to resist 'knocking' or 'pinging', or premature combustion. The higher the number, the greater ability to resist premature combustion. So the higher the number, the greater 'resistance to burning'. For an engine to run optimally, the timing of combustion is critical. With lower octane fuels, the high compression and engine heat of larger engines can cause the fuel to ignite prematurely. That is, it can ignite without the spark from the spark plug (knocking) (ie less resistance to burning, or will burn more easily). Ignition in two opposing combustion chambers at the same time can seriously damage an engine. Many newer vehicles can detect premature firing and prevent the opposing chamber from 'firing', minimising engine damage. Though that makes the engine less efficient. Using higher octane fuel in a vehicle recommending 87 octane is of no benefit. The ability to resist premature ignition is not necessary in a relatively lower compression engine. Assuming the vehicle has adequate measures to detect premature firing, using lower octane in one 'recommending' higher octane could be less effficient (fuel in chamber prevented from firing is not burned or 'wasted'). If vehicle is 'high performance' (ie requiring 94 octane) or turbo-charged, I would think it's risky to use lower octane fuels as the risk of premature firing is even greater. As previously mentioned, 'recommended' vs 'required' is an important distinction. www.fueleconomy.gov/feg/octane.shtml

Thanks for an informative and entertaining video.

When did higher octane start burning faster than lower octane in a combustion chamber

Really you could have cut the video for less than 5 minutes you're rumbling rumble and rumble and rumble even more about your thoughts and opinions about the grade let the pro talk finish it and be done with it instead the video goes for 35 minutes just rumbling about this what grade should we use.

I couldn't watch 35 mins of what should be a straightforward answer but appreciate the info I did hear. I was wondering about Top Tier detergent gasoline and maybe using mid-grade. But I think the answer is in terms of performance the octane rating is what matters. The Top Tier gas just helps prevent deposit buildup.

Ignored it on a factory supercharged Nissan Frontier I had and it caused allot of problems

Costco / Sam's Club 91 Octane: $4.5 / gal vs other gas stations :$5 /gal. So 50 cent difference and assume 10 gal vehicle, then it would have been $5 saved each time. So you will need to fuel up 24 times in a year to make up the membership cost while you can also enjoy all those wholesale household items, car tires, extended warranties on electronics, and rebates etc.

I put ethenol free 90 on my 2021 acura rdx will that help my engine or harm it in the long run ?

Can you address how dealer ordering of the Integra works? A lot of conflicting theories are out there about the process.

When I first got my 2016 mdx I used cheap gas for the first month. I started hearing the engine a little more, then I have a tracker in my truck and it said sensor 1 misfires . Acura replaced it and using plus. Premium recommended but my pocket 😫 Upgraded to 2019 mdx and heard the same thing and sure enough, they had to replace sensor and run it to pass inspection 😳 very rarely do I put regular gas. When taking long distance driving and will burn it out. It will not show on your dashboard soo be careful

Anything less than 91 octane on my TLX, the vehicle underperforms and the transmission slips, especially when running the a/c. Thank you for offering a sound explanation on the engine burn and combustion component.

This todd guy is fantastic. More todd!

If your owner's manual or the filler cap reads "Premium fuel only", do as they say.

what if you use 87 octane and a octane booster ?

I just bought a 2017 MDX and my second job won’t pay for premium when I use it occasionally for road trips. I’m assuming (haven’t tried yet) my fuel economy will decline when I use regular fuel. Can I I justify telling him he could give me $100 in premium fuel or $105 in regular fuel as the economy will decrease? Any thoughts would be helpful thanks.

So much unnecessary gabbing.... no real information forthcoming.... gosh, so difficult to listen when you are seeking information.

That price does not include tires or maintenance! $350 is on the low end of the premium price and it varies by state. Also I see how fast the miles states as I press the gas and depends on which mode I am in. Also the 2018 has eco mode. Does Premium really premium at Sam's club?

My 06 TSX, 08 RDX, and 11 MDX required +91 Octane. My 18 RLX Sport Hybrid 3.5L DI and 19 MDX Sport Hybrid 3.0L PI has the 87 Min/91 recommended sticker. I always use 91 octane from Sam's club or Costco, depending on which line is shorter since they are across the street from each other. Using top tier fuel is also a benefit for Acura engines. Zero fuel, mpg, or performance issues using +91 Octane w/ or w/o top tier formula of +17 years of owning Acuras.

Biggest problem I see or have with 87 octane fuel is that Ethanol loves sucking up Water, Last time I cheched it was Great for fuel injectors especially high pressure systems, I Started running 91 Octane now my Honda's run like a HONDA ❗😁

Always go with the manufacturer recommend/requirements, no matter what gas prices are. Plus these guys aren't 100% accurate. Before gasoline gets injected into the engine, the injectors are effected by the fuel first, so it's bes to go with the recommendation/requirements.

I legit didn’t realize until recently my MDX needed it. I’ve been having all these unexplained issues with my engine. I’ve been using it for over 8 years not realizing. I’m using premium for 2 months and seeing if I notice the issues slow down. Engine misfires constantly and def notice issue with my transmission. I’d definitely say it’s a gas eater too. I’ll update soon.

😮 very interesting 😮😮 10:48

Thats about $9.00 to $10.00 per fill up! That adds up over time!

Funny that several service makers say the opposite

my 18 tlx aspec V6 was always premium 70,000 miles but 22 mdx uses regular with 8,000 miles same engine I could have save that 10 to 20 cents for 4 yrs

sounds like if u have a lease u can put whatever

An induction service can RUIN a turbo engine... I have heard.

93 is all I see in Virginia, is that ok

Way too long explanation

Sounds fishy since all Honda cars just need regular? Other than performance and mpg, how can anyone believe lower octane gas will cause actual damage to a Honda engine? Does the electronic engine controls stop working if octane is less than 91 octane?

these guys look like they'd fail gr 9 science class

RU-vid is the definition of Rabbit holes, RU-vid videos should not be imbedded with rabbit holes. Answer your own question please and stop chasing every topic you can think of. Stay focused, answer the question, end the video.

These guys should just stick to ripping ppl off...they know nothing about engines and octane... they did this video to get ppl to come in so that they can rip you off.

Bla , bla ,bla . 91 OK !

premium gas is a scam

Three bumbling know nothing salesmen, blah,blah,blah, what a borefest with these 3 bozos...

Vote for Trump and obtain premium fuel for $2.50 or less a gallon.

It should take less than 15 seconds to answer the question. Instead, this presentation turned into a 40 minute diatribe of pathetic bellowing about a "rabbit hole?.

wow alot of talking with absolutely no concrete information about anything. typical dealer BS. just answer the question IS IT NEEDED OR NOT. very wishy washy unconfident answers. After hearing this BS SPIEL I WOULDN'T BUY A CAR THERE. get it together guys and just answer the question YES OR NO WOW you guys sound like a daytime talk show.