2024 Toyota Tacoma engine noise reduction with premium fuel

[UndergroundTaco]

I typically use top tier fuel from a local gas station but they don’t sell premium fuel. Today I filled up with premium from another local gas station. I thought I would try it since a Land Cruiser requires premium fuel and I would see if there is a difference. Much of the engine noise(especially from a stop on a hill etc) has gone away. I was truly surprised by this. Anyone else experienced anything similar?

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[Sagebrush]

I can't swallow the idea that an octane change will get rid of any engine noise. Pre-detonation yes, but our trucks won't have that because of the ECU.

Now, you believe it, so that's okay.

 

[G MAN]

Don't let Tony rain on your parade........enjoy the quite.

 

[UndergroundTaco]

It sounds less diesel like with premium. I also felt like it pinged in certain situations on regular gas. I wonder if that’s why they require it for the Land Cruiser. I am sure the programming is different between the two as well.

 

[fightforfood247]

I can't swallow the idea that an octane change will get rid of any engine noise. Pre-detonation yes, but our trucks won't have that because of the ECU.

Now, you believe it, so that's okay.

I also cannot believe or fathom why this would move the needle to make a difference. It’s possible, also placebo is a real documented thing. If OP is happy that’s all that matters I suppose….. keep buying that expensive

 

[WKTJR1]

Why the LC requires premium makes not sense. The engine specs are the same as the Tacoma.

 

[SnowmanJPS]

My Subaru boxer is noticeably quieter with 91 over 87, it doesn’t require premium, but I have always ran premium in my vehicles and motorcycles only switched when gas was really expensive for a week or some at a time

 

[Rocko]

I noticed it too. Switching to 5w30 made a bigger difference for me.

 

[UndergroundTaco]

I am wondering if they are doing it because it’s quieter and virtually no chance of pinging. I swear in certain situations I would hear it ping with 87.

 

[UndergroundTaco]

Does 5w 30 void the warranty?

 

[Rocko]

Does 5w 30 void the warranty?

I'm not worried about it. And I very much doubt it.

 

[batman900]

Could be placebo but I feel like it's quieter halfway through this tank of 89 no ethanol compared to the 87 with ethanol I had been using. In the mornings, I back out of my shop and then have to get out to pull down and lock the shop door which is when I notice it the most. Might be coincidence or nothing, dunno.

 

[32spoke]

Does 5w 30 void the warranty?

Since 5w30 synthetic is recommended for the same engine for warm weather for the European market… I would say that Toyota would have a difficult time punishing you for trying to use a more robust oil for hot climates. Thinner oils are more thermally conductive yet fail at a lower temperature.

 

[Deleted User 1813921]

I run 93. There is a noticeable difference. Oil and Gas same thread. Let the battle of opinions and flexing of knowledge begin!

 

[hoodouken]

My Subaru boxer is noticeably quieter with 91 over 87, it doesn’t require premium, but I have always ran premium in my vehicles and motorcycles only switched when gas was really expensive for a week or some at a time

Hy bud you're supposed to running premium in Suby turbo'd engines. I have an STi and an Outback XT. Just being safe and hoping to help.

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