Anyone use regular gas in their Si?

[amirza786]

They definitely won't void the warranty for using regular. It says premium recommended.

If you want the full potential of the engine, stick to premium.

You could probably go far on regular gas and Honda fluids but this is a forum of mostly enthusiasts so there's a lot of synthetic oil from boutique manufacturers and definitely no regular gas.

LOL that's the understatement of the year. Also we change our oil every 500 miles, you know, just to be sure. F the MM as well!

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[amirza786]

Premium fuel is very important in a turbo charged vehicle. You want to avoid detonation.

You won't get detonation. The ECU will pull timing. You may not get the full performance out of the engine, but zero damage will occur

 

[maggs_10thgen]

You won't get detonation. The ECU will pull timing. You may not get the full performance out of the engine, but zero damage will occur

Good to know. Technology definitely changed the way turbos run these days. I guess the biggest issue is the TQ and rods running high boost

 

[Swank]

I would not buy a car from a dealer who puts 87 in when 91 is recommended.

 

[amirza786]

I would not buy a car from a dealer who puts 87 in when 91 is recommended.

They all do that my friend, since it's not going to hurt the car, it's really no big deal

 

[Gotch]

No f’innn way tuned. Not ever trying this stupidity. Price you pay to play. Want to run regular, get something other than the Si. I really don’t understand the mentality of running regular in the Si. If you can’t afford it walk or take the bus....

 

[amirza786]

No f’innn way tuned. Not ever trying this stupidity. Price you pay to play. Want to run regular, get something other than the Si. I really don’t understand the mentality of running regular in the Si. If you can’t afford it walk or take the bus....

Yes, this is the exception, glad you mentioned it. These tunes were written for 91 or 93 octane. In this case, if tuned you MUST run premium, this is stated by the tuners. Otherwise, premium while stock will get you the best performance. But this is America, so...

 

[Gotch]

Yes, this is the exception, glad you mentioned it. These tunes were written for 91 or 93 octane. In this case, if tuned you MUST run premium, this is stated by the tuners. Otherwise, premium while stock will get you the best performance

Even stock @amirza786 , why would anyone cheap out? I just don’t get it. And I’m paying over $6/gallon for premium!

 

[amirza786]

Even stock @amirza786 , why would anyone cheap out? I just don’t get it. And I’m paying over $6/gallon for premium!

I always, 100 percent used premium in my Si. 87 never entered my tank when I owned it. You should use Premium. But if a person did not, it's not going to hurt their car, but mainly, I'ts not my car, so I don't care what others use

 

[Swank]

They all do that my friend, since it's not going to hurt the car, it's really no big deal

Really? Cheap buggers, but I guess it adds up for them. I retract my statement. Here I thought my baby never drank the cheap stuff

 

[Gotch]

You know what? Fuck Honda! Run 87 in your Si and then bitch and moan on the forums about you have no power. At least you are saving a couple of bucks! And when you blow your motor, be sure to blame Honda for that as well! Holy fuck the stupidity never ends.....

 

[amirza786]

Really? Cheap buggers, but I guess it adds up for them. I retract my statement. Here I thought my baby never drank the cheap stuff

Dealerships are on the edge when it comes to cash flow. They live on credit and their margins are slim when they move a car and depend on those factory rebates and incentives from the manufacturer. Dealerships are supplemented by their repair facilities and parts and accessory sales. So they will go cheapest method when filling up

 

[amirza786]

You know what? Fuck Honda! Run 87 in your Si and then bitch and moan on the forums about you have no power. At least you are saving a couple of bucks! And when you blow your motor, be sure to blame Honda for that as well! Holy fuck the stupidity never ends.....

My friend, you seem a bit upset today. Did our President say something today (again) to upset the balance of the world?

 

[Micah]

You won't get detonation. The ECU will pull timing. You may not get the full performance out of the engine, but zero damage will occur

eh... that's a widely discussed and disputed grey area.

https://en.wikipedia.org/wiki/Engine_knocking

The ECU will pull timing when it detects knock. Knock is pre-ignition or detonation at an unexpected time. Saying "zero damage will occur" paints quite the harmless picture. IMHO, if an engine is prone to knock, it's not running right and is going to have problems.

Now if someone only fed it regular, the timing would get adjusted kinda permanently (effectively enough). The engine would make less power and would be a sad example of how it can run on lower octane fuel.

I'd say giving the engine 91 octane is a minimum since some areas do not have 92 or higher available. Running the engine on 87 octane because "it will adjust to the fuel and back off timing...." is just a horrible idea.

 

[Micah]

My friend, you seem a bit upset today. Did our President say something today (again) to upset the balance of the world?

Well, he is proposing a ban of flavored nicotine vape juice due to the sale of lousy THC vitamin e acetate juice.... making the USA again look like a circus led by a clown

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