Do we really get bad gas?

[niky]

I agree. Too much deposits when using blaze on the sparkplug (maroon color)

Maroon? Reddish plug tips actually mean perfect combustion. It's white and black ones you should worry about...

[bitmd]

On other gasoline,  I get the reddish color on the spark plugs.  Actually its more of a rust like residue on the spark plugs when using blaze.

[BlackBlood]

chocolate brown color is usually what you want to get, indicating a good burn.

what about diesels in our country? im reading biodiesel for some engines, really mess up some newer diesel engines. i think till B5 lang ang kaya ng mga newer turbo diesels. e.g. euro brands

[niky]

Biodiesel in that amount isn't too dangerous. At the most, B5 will dilute your oil... but only slightly... and most manufacturers recommend a short 5000 kilometer service interval locally, compared to the 10-15,000 kilometer intervals European diesel cars can run.

They do this because our local diesel sucks. The danger of particulate contamination and water contamination cause injectors and pumps to fail early on some cars. Hell... even with "old school" diesels, it isn't unheard of to need injector cleaning and pump servicing before 200,000 kilometers. Think of it... if our diesel is that bad, what can it do to newer cars with higher pressure pumps and piezo-injectors?

[MFB]

This post is for turbo powered cars.

If you want the highest octane that can maximize timing and boost, its VPower.  The same map I have on the subaru makes car knock (rough and fine correction) with Blaze.  Not sure if its just the station but I dont want to keep on having to go to a specific Petron station to get my gas.

As for seaoil, it knocks far less than Blaze but it still knocks where Vpower doesnt. I tried to add more fuel but knock is still there.  Since I dont want to reduce timing or boost, Vpower is the one I use then.  Nonetheless, we still ought to have better fuel here or else we have to get a meth kit to make our turbo cars run the way it should.


Post Merge: May 30, 2010, 10:59:39 AM
For subarus, its easy to find out if we got bad gas or not due to access available to us via logging.

Using a tactrix cable, we are able to see our Ignition Advance Multiplier.  I believe the Subaru dealer can also monitor this using their diagnostic computer.  It should be at 1 which means our engine is happy.  Lower than that and it may pull timing or boost depending on the settings for one's tune.  You need to be monitoring feedback knock correction and fine learning knock correction for this. 

Bad gas shows up as knock or timing retardation.  You know as previously these were at 0 with good gas.  Timing will be pulled hence lower power.  I've seen these happen on stock subarus and imho, best to use either vpower , seaoil 97 or if blaze, from a reputable station.  Caltex gold is ok as well for stock, no knock recorded on the cars I've logged for friends.

e10 fuel loses its octane over time due to alcohol evaporating.  Always get your fuel from a high transaction gas station so you always get new.   Ask your dealer or favorite motor shop how you can monitor your knock corrections.

[Conan®]

This post is for turbo powered cars.

If you want the highest octane that can maximize timing and boost, its VPower.  The same map I have on the subaru makes car knock (rough and fine correction) with Blaze.  Not sure if its just the station but I dont want to keep on having to go to a specific Petron station to get my gas.

As for seaoil, it knocks far less than Blaze but it still knocks where Vpower doesnt. I tried to add more fuel but knock is still there.  Since I dont want to reduce timing or boost, Vpower is the one I use then.  Nonetheless, we still ought to have better fuel here or else we have to get a meth kit to make our turbo cars run the way it should.


Post Merge: May 30, 2010, 10:59:39 AM
For subarus, its easy to find out if we got bad gas or not due to access available to us via logging.

Using a tactrix cable, we are able to see our Ignition Advance Multiplier.  I believe the Subaru dealer can also monitor this using their diagnostic computer.  It should be at 1 which means our engine is happy.  Lower than that and it may pull timing or boost depending on the settings for one's tune.  You need to be monitoring feedback knock correction and fine learning knock correction for this. 

Bad gas shows up as knock or timing retardation.  You know as previously these were at 0 with good gas.  Timing will be pulled hence lower power.  I've seen these happen on stock subarus and imho, best to use either vpower , seaoil 97 or if blaze, from a reputable station.  Caltex gold is ok as well for stock, no knock recorded on the cars I've logged for friends.

e10 fuel loses its octane over time due to alcohol evaporating.  Always get your fuel from a high transaction gas station so you always get new.   Ask your dealer or favorite motor shop how you can monitor your knock corrections.

Really? Maybe one of these days I will load V-Power and listen carefully for knock but in the past, V-Power would result in a loss of power in my Silvia. Seaoil 97 works good but almost all stations don't accept credit card payments so I don't bother going to their stations anymore.

With regard to Bad Gas, I've been lading up Blaze at Petron station Balete corner Aurora Blvd., for close to 2 years now. Over time I've noticed my gas consumption deteriorate steadily until it reached a shocking low of 2.9 K/L! One day I just happened to load up at my old Petron suki (Ortigas corner Santolan) and then my gas consumption suddenly improved to 4.3 K/L which is what I used to get in the past!

[niky]

This post is for turbo powered cars.

If you want the highest octane that can maximize timing and boost, its VPower.  The same map I have on the subaru makes car knock (rough and fine correction) with Blaze.  Not sure if its just the station but I dont want to keep on having to go to a specific Petron station to get my gas.

As for seaoil, it knocks far less than Blaze but it still knocks where Vpower doesnt. I tried to add more fuel but knock is still there.  Since I dont want to reduce timing or boost, Vpower is the one I use then.  Nonetheless, we still ought to have better fuel here or else we have to get a meth kit to make our turbo cars run the way it should.


Post Merge: May 30, 2010, 10:59:39 AM
For subarus, its easy to find out if we got bad gas or not due to access available to us via logging.

Using a tactrix cable, we are able to see our Ignition Advance Multiplier.  I believe the Subaru dealer can also monitor this using their diagnostic computer.  It should be at 1 which means our engine is happy.  Lower than that and it may pull timing or boost depending on the settings for one's tune.  You need to be monitoring feedback knock correction and fine learning knock correction for this. 

Bad gas shows up as knock or timing retardation.  You know as previously these were at 0 with good gas.  Timing will be pulled hence lower power.  I've seen these happen on stock subarus and imho, best to use either vpower , seaoil 97 or if blaze, from a reputable station.  Caltex gold is ok as well for stock, no knock recorded on the cars I've logged for friends.

e10 fuel loses its octane over time due to alcohol evaporating.  Always get your fuel from a high transaction gas station so you always get new.   Ask your dealer or favorite motor shop how you can monitor your knock corrections.

This matches most of what I know. On our naturally aspirated cars, where timing advance is needed to extract every last pony, V-Power is superior to everything else out there.

[Leo C.]

I agree. Too much deposits when using blaze on the sparkplug (maroon color)

Maroon color is caused by a fuel additive called  MMT to increase octane rating. It was used after oil companies stopped using TEL or Tetra-Ethyl Lead. But I believe MMT caused also some problems in some engines. Any info guys?

[ydnar28]

e10 is very bad fuel. mine change to seaoil extreme 97octaine rating.

[gianGT4]

Really? Maybe one of these days I will load V-Power and listen carefully for knock but in the past, V-Power would result in a loss of power in my Silvia. Seaoil 97 works good but almost all stations don't accept credit card payments so I don't bother going to their stations anymore.

With regard to Bad Gas, I've been lading up Blaze at Petron station Balete corner Aurora Blvd., for close to 2 years now. Over time I've noticed my gas consumption deteriorate steadily until it reached a shocking low of 2.9 K/L! One day I just happened to load up at my old Petron suki (Ortigas corner Santolan) and then my gas consumption suddenly improved to 4.3 K/L which is what I used to get in the past!

so i guess it was your blue silvia that i saw sometime along aurora? hehe!

anyway btt:
is it really true that some gas stations' gas are fake? fake in the sense that, just like what sir conan said, mabilis maubos than others?.. :dontknow:
coz most often than not, my gas lasts only when i get from point a  to point b.. and when i have to go home i have to gas up again 60% of the time.. my trip from house(malabon) to office(pedro gil) costs 300php worth of Gold or XCS.. the next day i have to gas up again..  :violent1:
is it just my car? btw, i usually gas up 300 XCS or 300 Gold... pag blaze ang kinarga ko, noticeably mas matagal siya maubos..  :dontknow:
and my car is a celica gt4, 3sgte engine..  :thumbsup:

from my experience..

Mabilis maubos:

petron C3 road
petron C4 road
petron balete cor. aurora
petron broadway cor. aurora
petron timog circle
petron intramuros (eto grabe!)
petron pedro gil cor. taft ave
petron n.lopez ave, pque
caltex president ave, bf pque
caltex timog ave
caltex aurora blvd near j.ruiz

Matagal maubos:

petron araneta ave/sgt.rivera
petron Quezon ave.
petron tomas morato cor. e.rodriguez
petron p.guevarra( both petrons )
petron p.ocampo cor. harrison
petron blue wave macapagal
petron macapagal
petron sucat road (near patts)
petron kabihasnan
caltex R10
caltex sucat road  (near patts)

so yan... jan lang kasi ako madalas dumaan so yan lang ang madalas na napapag-pagasan ko..  :rofl:
thinking about it, para pala kong taxi.. kung saan-saan ako napapadpad.. :rofl:

[R-A-Y]

Hmmmm... not being an expert on the gasoline, but looking at your list, you may want to try out a Shell station also. From my experience I get better mileage and less knocks and pings using their gas, regardless of what station I get it from.

Based on discussions that I have had from various people, they seem to have stricter protocols in ensuring the integrity of the gas they place in pumping stations. I have no hard evidence about this but it's well worth noting given that some people are knowledgeable about it

[Leo C.]

If you're into racing, the more important octane number is the Motor Octane Number (MON) The Reasearch Octane Number (RON) are the higher numbers, that is the reason why these numbers are used by oil companies in advertising thier products. RON is a no-load test and should not be used to determine what gasoline to use in racing engines.   However, other important factors related to POWER from gasoline are BURNING SPEED, ENERGY VALUE , COOLING EFFECT, SPECIFIC GRAVITY,  REID VAPOR PRESSURE, and CONSISTENCY.  Octane is just one factor, and a misleading one at that.  Definitely, the other factors/information are not avaliable to the public and may really tell us what kind of fuel we are using.  Gasoline A may be 93 RON but has a higher burning speed, while gasoline B may be a 97 RON but with a slower buring speed, or has a better cooling effect for a more denser combustion, but with a high RVP, etc, etc, etc. We may never know.

 
 
 
 

 

 
 
 
 
 
 

[gianGT4]

Hmmmm... not being an expert on the gasoline, but looking at your list, you may want to try out a Shell station also. From my experience I get better mileage and less knocks and pings using their gas, regardless of what station I get it from.

Based on discussions that I have had from various people, they seem to have stricter protocols in ensuring the integrity of the gas they place in pumping stations. I have no hard evidence about this but it's well worth noting given that some people are knowledgeable about it

noted.. maybe i should try shell one time..  :thumbsup:

If you're into racing, the more important octane number is the Motor Octane Number (MON) The Reasearch Octane Number (RON) are the higher numbers, that is the reason why these numbers are used by oil companies in advertising thier products. RON is a no-load test and should not be used to determine what gasoline to use in racing engines.   However, other important factors related to POWER from gasoline are BURNING SPEED, ENERGY VALUE , COOLING EFFECT, SPECIFIC GRAVITY,  REID VAPOR PRESSURE, and CONSISTENCY.  Octane is just one factor, and a misleading one at that.  Definitely, the other factors/information are not avaliable to the public and may really tell us what kind of fuel we are using.  Gasoline A may be 93 RON but has a higher burning speed, while gasoline B may be a 97 RON but with a slower buring speed, or has a better cooling effect for a more denser combustion, but with a high RVP, etc, etc, etc. We may never know.

ahh jeez.. so it seems there are too many factors to consider in just picking which gas to put in your car?

hmm... in any case.. i'd take time to read about the gas stations, their gasses and the items above in caps..   :thumbsup:

[niky]

Actually... the knock count MFB mentioned will give clues as to which gasoline actually has the better MON or AKI... and, as many of us have testified, it seems that V-Power really is the best. In my experience on the dyno, in what MFB has posted, and what I've heard from owners of Evos and 911s... V-Power seems to be the most stable and best gasoline for cars requiring "high octane" fuel to prevent knock.

[Conan®]

Actually... the knock count MFB mentioned will give clues as to which gasoline actually has the better MON or AKI... and, as many of us have testified, it seems that V-Power really is the best. In my experience on the dyno, in what MFB has posted, and what I've heard from owners of Evos and 911s... V-Power seems to be the most stable and best gasoline for cars requiring "high octane" fuel to prevent knock.

But when V-Power 97 came out a lot of us from Club Silvia tried it out and the consensus was our cars felt so down in power it was like we lowered our boost settings.  :dontknow: