ok to put in 87 ocatane gas?????? or bad for engine?

[gyshiga]

I'm currently putting in 87 octane gas because i just drive it to work. and the prices are so high....... $4.55 per gallon for 87, 5$ for 92.


my friend is putting 89 octane.

does anyone know any information regarding gas for the car? it says 92 is required.

do i get more milage with 92 or just performance?

[J'sS2K]

NO NO NO. Do not use 87 octane. Use 89 if you can't afford 93!

PS: The manual says 86 octane or less will damage the engine.

[s2000isu]

do a search on this topic.

[D1sclaimer]

If you want better gas mileage get a fit. If you want great gas mileage, why'd you by a sports car?

You could run 89 octane in it every other time, but it'll run like crap and you'll having knocking. Is it worth the whole 3 dollars you save by cheaping out when filling up?

Change your driving habbits for better gas mileage.

[gyshiga]

Originally Posted by D1sclaimer

If you want better gas mileage get a fit. If you want great gas mileage, why'd you by a sports car?

You could run 89 octane in it every other time, but it'll run like crap and you'll having knocking. Is it worth the whole 3 dollars you save by cheaping out when filling up?

Change your driving habbits for better gas mileage.

thats true. but i dont really drive fast, or punch it. so its really not the performance i worry about.

i've brought this topic up because i've noticed my engine ramble a bit when the engine is just nuetrel.

i'm going to put in 93 octane and see if there is any difference.

it is a brand new 2008, with 3,000 miles.

what does everyone else put in? 89 or 93?

[J'sS2K]

I converted my car to run on water! HAHAHA

[philiam]

As long as it doesn't sound like a can of marbles, it won't hurt. Performance will suffer because the timing will retard to compensate. But if you drive it moderately it should be fine. Todays cars have knock sensors to prevent damage.

Remember, a penny saved is nearly worthless these days!

[gyshiga]

so everyone here is running on 93 octane?

then thats the way I shall go.

Might mean something if everyone is doing it for their car
performance/longivity/engine/etc.

[DJJSR]

I've been feeding her 91 since she was born and she ain't complainin.

[Sikocivic]

Most of the newer cars will run on 87 but the computer will sense the "knock" and retard the timing. With the timing retarded you will get less MPG and you don't really save any money. A buddy drove his Prelude from FL to MN. He got 4 MPG less on the 87 than with the 92.

[killabee]

Originally Posted by J'sS2K

I converted my car to run on water! HAHAHA

running on water now thats pimp.

[f20milo]

Thats pretty stupid to put 87 octane in an s2000.. If you do the math, your actually waisting more gas. When I bought my s2k from the dealer, they filled her up and I didnt know how manny miles it did with a full tank so I calculated and it only did 155 miles.. I was like WTF!!! So I filled up with the right gas (93 octane) and the car did 70 miles more.. So it had to have 87 octane. Thats stupid to put that gas.. Your killing your motor slowly and its NOT running to its full potential..... Sell your s2 and get a miata, thats the closest to an s2k and you can put 87 octane.

[chazdawg35]

I started a thread about this a couple of months ago and I'm not to sure about 87 so I stayed with 92. I read the owner's manual and it says to use 87 in an emergecy, but go right back to 92.

[gyshiga]

i'm putting in 91 to 92 in my car.

shouldnt be much of a difference.

arco has 91 , think mobil / shell has 92.

i'll see if i see any difference.
i've started this thread cause since i bought my car
brand new 2008,

i've been putting in 87 and
when i am idle, i felt the engine rpm rumble up and down
and didnt think it should do that since it only had 3k miles on it

[DJJSR]

Originally Posted by gyshiga

i've started this thread cause since i bought my car brand new 2008, i've been putting in 87 and when i am idle, i felt the engine rpm rumble up and down and didnt think it should do that since it only had 3k miles on it

Did you read the owners manual?

[gyshiga]

Originally Posted by DJJSR

Did you read the owners manual?

no, do you think it did any damage to the engine or timer? i've used 87 octane for 3,000 miles starting at 8 miles.

i hope i didnt. i'll see after awhile and see if the rumbling is still there while idling.

[Red Stwokay]

Check this post. http://s2000.com/forums/engine-tech-...html#post47775 Pablo put a good link in his post, unfortunately it is not working, it looks like AAA archived that story. Perhaps someone can retrieve it, I tried but no luck. It was very good, true and accurate.

I doubt you have or will do any damage running 87 octane. Check your owners manual, REPEAT CHECK YOUR OWNERS MANUAL! Sorry to yell that last sentence but that is where you'll get the facts. Here you get opinions and maybe some facts too.

I've been running 87 for some time now. No problems, maybe a bit less performance but I'm not out to race, besides no one can beat me even with the 87! I push it pretty hard at times, no complaints. Honda reccomends a higher octane but also says 86, repeat 86 not 87 but 86 or lower MAY yes may but only may not definately but may cause damage. The manual says 87 is OK. I have not seen 86 at any stations around here. Do they even make 86 octane?

Do what you want and if the cars fine, it's fine. It hasn't effected my mileage at all. If I want to save gas I need to keep my leg out of it. I don't buy 87 to save money per say or shouild I say per gallon but on the over all use. I like to go on nice long drives and the 87 makes it easier to swallow and I don't have to worry about hitting the gas, at least as much. Fifty to seventy-five cents more per gallon is quite a bit. In some cases it's a whole dollar more especially if you compare say Hess 87 octane and Sunoco 93 or 92 what ever it is.

I buy Hess to, none of that big name expensive stuff. It's all the essentially the same and I was a mechanic some years ago and still am somewhat. I admit a lot of it is principle for me. I don't want to give the oil companies any more than I have to. Some people think that all the gas is the same and they just label it 87, 89, 92. I don't buy that but there have been stations caught filling their tanks with nothing but 87.

[Neil]

Originally Posted by gyshiga

I'm currently putting in 87 octane gas because i just drive it to work. and the prices are so high....... $4.55 per gallon for 87, 5$ for 92.


my friend is putting 89 octane.

does anyone know any information regarding gas for the car? it says 92 is required.

do i get more milage with 92 or just performance?

If you just spent 30,000+ for a new car whats an extra $ 3 for a fill...not much....

Your cars engine is still new, run it with the higher octane gas and you'll be just fine

[dezignpro04]

RTFM! I am so tired of these gas questions. There is a BIG difference with recommended and required. It says that 93 is required.

Its like buying a Ferrari and complaining about how much the F'n tune-ups are. Come on man!!

[DJJSR]

Quote from the owner's manual, 2006 (don't know about other years).........

Your vehicle is designed to operate on premium unleaded gasoline with a pump octane of 91 or higher. Use of a lower octane gasoline can cause occasional metallic knocking noises in the engine and will result in decreased engine performance. Use of a gasoline with a pump octane less than 87 can lead to engine damage.

[Swingle1]

Originally Posted by Red Stwokay

Check this post. http://s2000.com/forums/engine-tech-...html#post47775 Pablo put a good link in his post, unfortunately it is not working, it looks like AAA archived that story. Perhaps someone can retrieve it, I tried but no luck. It was very good, true and accurate.

I doubt you have or will do any damage running 87 octane. Check your owners manual, REPEAT CHECK YOUR OWNERS MANUAL! Sorry to yell that last sentence but that is where you'll get the facts. Here you get opinions and maybe some facts too.

I've been running 87 for some time now. No problems, maybe a bit less performance but I'm not out to race, besides no one can beat me even with the 87! I push it pretty hard at times, no complaints. Honda reccomends a higher octane but also says 86, repeat 86 not 87 but 86 or lower MAY yes may but only may not definately but may cause damage. The manual says 87 is OK. I have not seen 86 at any stations around here. Do they even make 86 octane?

Do what you want and if the cars fine, it's fine. It hasn't effected my mileage at all. If I want to save gas I need to keep my leg out of it. I don't buy 87 to save money per say or shouild I say per gallon but on the over all use. I like to go on nice long drives and the 87 makes it easier to swallow and I don't have to worry about hitting the gas, at least as much. Fifty to seventy-five cents more per gallon is quite a bit. In some cases it's a whole dollar more especially if you compare say Hess 87 octane and Sunoco 93 or 92 what ever it is.

I buy Hess to, none of that big name expensive stuff. It's all the essentially the same and I was a mechanic some years ago and still am somewhat. I admit a lot of it is principle for me. I don't want to give the oil companies any more than I have to. Some people think that all the gas is the same and they just label it 87, 89, 92. I don't buy that but there have been stations caught filling their tanks with nothing but 87.

I totally concur with Red.

There is a slight loss of HP... barely noticeable. I never hear knocking, because the timing has been adjusted. While in theory mileage would have to suffer as well, I haven't been able to measure any loss.

The question is really about whether or not YOU think the added performance is worth the cost. Far be it for me to tell you how to spend your money. My only point is that the "performance thing" is the only question. Everthing else, such as "your (sic) slowly killing your motor..." is BS.

[J'sS2K]

Originally Posted by DJJSR

Quote from the owner's manual, 2006 (don't know about other years).........

Your vehicle is designed to operate on premium unleaded gasoline with a pump octane of 91 or higher. Use of a lower octane gasoline can cause occasional metallic knocking noises in the engine and will result in decreased engine performance. Use of a gasoline with a pump octane less than 87 can lead to engine damage.

That's what I always tell people, but no one listens

By the way, it says that for the 2005 too!

[MarkZ28]

Could have sworn my owners manual said that premium is recomended but can use 87 octane. I have used 93 octane since buying my 03 so it doesnt matter to me, its not my daily driver.

[philiam]

Damage comes from detonation (knocking or pinging). The fuel explodes rather than burning. If there is no detonation I know of nothing else that could damage the engine, assuming there is no water or other contaminant involved. If you don't lug the engine it should be OK.