Octane use on NA-V6

[Rudy]

i guess you didn't read the FAQ;s huh

What do the various engine codes mean?

First number is generation of the engine series.
The next two letters are the engine block series
The latter after the dash is the type of head (F=economy or G=performance)
E = Electronic Fuel Injection

There are 3 generations of the MZ series block. 1MZ - 3.0L, 2MZ 2.5L, 3MZ 3.3L.

If you want more info, it's listed on Toysport.com about the designation of the F and G series heads

actually that's where i got it from, i just forgot about the e

[cdssolara]

Using higher octane gas in an N/A Solara engine will not give you more power unless you've raised the compression ratio. If your engine is running fine without knocking on 87 octane gas, going to anything higher is just a waste of money. Higher octane does not automatically mean more power. It is only a measurement of resistance to spontaneous detonation. At higher compression, 87 octane gas will spontaneously detonate sooner than 89 octane gas, which will detonate sooner than 91, etc, etc. If you've increased your compression ratio, which happens when you use a supercharger or turbocharger, you will usually need to use higher octane gasoline to prevent your engine from knocking. Otherwise, stick to manufacturers recommendations unless you just want to spend extra money for nothing.

[Stock Solara SEV6]

Otherwise, stick to manufacturers recommendations unless you just want to spend extra money for nothing.

What's the recommendation for the v6? Premium. As you stated, the lower the octane rating, the easier the fuel is to ignite. The V6 has 10:1 compression (I recall), which is pretty high. Lower octane can (will?) cause detonation and the computer will compensate by reducing the timing. The reduction in timing will reduce performance (although probably not noticeable for everyday driving). You will likely not hear the detonation, as the knock sensors will adjust the timing to compensate. If the computer can run full advance without any detonation at the lower octane rating, then I agree that would be the best use of hard earned money!

[Rudy]

i thought the manual said 87.

whatever

[cdssolara]

Yes, the manual says 87.

[toy4x4boy]

What's the recommendation for the v6? Premium.

Wrong, it's 87. Think you should read the manual again.

[StockSolara]

Yeah thats true for stock solaras the manual says for it to use 87 octane and it also says if you improved the performance you should use 91 octane so yeah

[SleeperSolara]

Ok an update:
I just ran a full tank of 89 octane wit some Import Boost from 104+; and got 277 miles out if it, which in turns means i got about 22mpgs out of that one tank of 89 wit 104+. What up wit that.
i'll see what happens wit 87 octane and 104+.

[808Camry]

If you 're gonna run boosters, you might as well just put premium gas. You're spending about the same if not less using premium. Plus those boosters could contain stuff you don't want to constantly keep running in your engine.

[Yanks0114]

Boosters just boost it a .1 octane at a time. They're a rip off

[DatSRBoi]

I think you guys are wrong. I've read an article that booster dont do anything but lie. here is the article

As for octane boosters, just reading the label in the back tells you exactly what it does, which is lower your octane requirements. Although it is worded in a way that is confusing, just read it carefully and you will see. This does the total opposite of what the consumer wants to buy it for, which is to increase the octane of the gas in your car. When you pour a bottle of these octane boosters in your car, your octane stays the same, but if your car previously required 91 premium unleaded, the "octane boosters" help to lower the requirements to 86, which theoretically gives you a 5 point increase in gas octane vs octane requirements. Does this mean your car will perform as well as putting in 96 octane gas? In fact, it may perform even worse with premium gas than it will with regular since your car is now made to run with a lower octane gas. Only their inclusion of what their product truely does keeps them from being investigated by the FTC.

here is the site that this was gotten from. http://www.teamsc3.com/

[SleeperSolara]

Well when i did put in 89 wit Import Boost, it sounded throater and felt like more power, i'm about to fill up the tank again and will try to us just 89 octane. By the way, can you guys explain how i got 277 miles out of 1 full tank of 89 octane wit boost in it, and i only filled up wit about 12 -13 gals, which should calc to 22 mpgs. How does that happen.

[cdssolara]

Well when i did put in 89 wit Import Boost, it sounded throater and felt like more power, i'm about to fill up the tank again and will try to us just 89 octane. By the way, can you guys explain how i got 277 miles out of 1 full tank of 89 octane wit boost in it, and i only filled up wit about 12 -13 gals, which should calc to 22 mpgs. How does that happen.

I can't understand how your car would sound any different with different octane gas. Sounds like a placebo effect.

[808Camry]

just stop wasting you're money, if you want higher octane just run the premium.

[bkp_duke]

I wonder if there are different revisions of the manual. My manual says 91 or higher (for the V6 anyway).