What's The Difference Between RON95 and RON97

gOsht

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gOsht

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the differ between RON 95 and 97 its not much..
only differ in RON, IBP and additive.other than that is similar spec..

if u want to feel the real power use aviation gasoline its RON 101.5 wit a far better spec
feel like using NOS..had been used in my car more than a year..
 
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vr2turbo

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As far as I know, if you car does not require higher RON Rating, for example only need RON93 to run, then running on RON95 is good enough. Using RON97 does not give extra power. However if your car need RON97 to run then running on RON95 the engine will knock or ping....
 

cvkit17

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cvkit17

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As far as I know, if you car does not require higher RON Rating, for example only need RON93 to run, then running on RON95 is good enough. Using RON97 does not give extra power. However if your car need RON97 to run then running on RON95 the engine will knock or ping....
It actually does give more power and a smoother ride. So many folks out there really thinks that RON97 really makes your car more powerful, have a cleaner and better engine. (Psst: even my boss who's an engineer also thinks so..oh my lady gaga)

Totally agree with vr2turbo! RON97 does not give you power itself. It is the additives that differ from RON95. If your car can run on RON95 or lower, use it. Pumping RON97 when ur car can run on RON95 is just wasting your money. Unless you want that little little extra boost to make ur ride smoother.
 

Dayline668

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Dayline668

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Ppl just dun understand the meaning of ron.... higher ron is use for better suppression for knock in high performance engine, nothing more, a stock N/A like a myvi all u get is smoother rev that's it. Waste of money...

Wanna go fast turbo or supercharge it lo...
 

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Ppl just dun understand the meaning of ron.... higher ron is use for better suppression for knock in high performance engine, nothing more, a stock N/A like a myvi all u get is smoother rev that's it. Waste of money...

Wanna go fast turbo or supercharge it lo...
Many think higher RON means more powerful, in fact layman terms, the higher the RON the slower the ability to burn, that is why high compression engine require higher RON. The knocking is actually denotation, means the fuel burns before compression stroke is complete. This, in the long run will damaged the engine....
 

Supra_Fanatics

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Supra_Fanatics

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But my saga having some knocking sound lately with Ron95 :rofl: Dunno what's the sound though :rofl:
(Mivec in disguise?)
 

pwhyze

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pwhyze

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Funny thing, I read a feature in a mag once, comparing different fuel grades on the same engine by dynoing the engine after each refuel. The higher RON fuel actually produce an increase of 4~5bhp...
 

vr2turbo

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vr2turbo

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But my saga having some knocking sound lately with Ron95 :rofl: Dunno what's the sound though :rofl:
(Mivec in disguise?)
Newer cars have knock sensors, and should readjust the timing to overcome the knock.
My old school all manual, if need to, have to manually adjust.....:hmmmm: but some mention will loose power because got to turn back the advance timing.....:banghead:

---------- Post added at 12:26 PM ---------- 6 hour anti-bump limit - Previous post was at 12:24 PM ----------

Funny thing, I read a feature in a mag once, comparing different fuel grades on the same engine by dynoing the engine after each refuel. The higher RON fuel actually produce an increase of 4~5bhp...
Performance engine then yes, because they require very high RON fuel....
 

^pomen_GTR^

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Funny thing, I read a feature in a mag once, comparing different fuel grades on the same engine by dynoing the engine after each refuel. The higher RON fuel actually produce an increase of 4~5bhp...


it depends...

if stock engine was tuned to suits ron92/95 fuel with low compression setup then surely using ron103 race fuel also yielding no hp increase...

but high performance engine that was meant to use ron97 above surely got differences when using ron95/97 fuel....


even chap in Fifth Gear show acknowledge this...normal city car and boosted performance car yield different result with different fuel in the test
 

pwhyze

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pwhyze

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Interesting thing was, it was tested on a regular city car, an Astra or something, can't remember....definitely not high performance car with High CR. When they tested it with Ron 99 (or Ron 100, can't remember again), they got more power...so maybe Myvi can benefit from Ron 97?? XD
 

Supra_Fanatics

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Newer cars have knock sensors, and should readjust the timing to overcome the knock.
My old school all manual, if need to, have to manually adjust.....:hmmmm: but some mention will loose power because got to turn back the advance timing.....:banghead:

Performance engine then yes, because they require very high RON fuel....
meaning to say, I have to send my BLM to mechanic to adjust? Will lose power or not? :rofl:
 

Dayline668

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Dayline668

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Not that u can feel the power increase... pointless... For RM1.1/L more if u think is worth it then is your money lo... Go pump v-power racing lo...

---------- Post added at 01:47 PM ---------- 6 hour anti-bump limit - Previous post was at 01:46 PM ----------

meaning to say, I have to send my BLM to mechanic to adjust? Will lose power or not? :rofl:
Less timing sure lose power n FC... What fuel u pump lately..? test with other fuel..?
 

vr2turbo

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meaning to say, I have to send my BLM to mechanic to adjust? Will lose power or not? :rofl:
BLM quite new, but not sure if it comes with knock sensor. If yes, then no need to manual adjust....

---------- Post added at 01:51 PM ---------- 6 hour anti-bump limit - Previous post was at 01:48 PM ----------

Not that u can feel the power increase... pointless... For RM1.1/L more if u think is worth it then is your money lo... Go pump v-power racing lo...

---------- Post added at 01:47 PM ---------- 6 hour anti-bump limit - Previous post was at 01:46 PM ----------



Less timing sure lose power n FC... What fuel u pump lately..? test with other fuel..?
Exactly, will the power increase that much to pay extra RM1.1, even average at 45L per tank almost RM50 more per tank....:banghead:
V power Racing? that is another 30 sen premium over Ron 97, right?.....:rolleyes:

Lower the advance, will loose pick up also.....:banghead:
 

Supra_Fanatics

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Newer cars have knock sensors, and should readjust the timing to overcome the knock.
My old school all manual, if need to, have to manually adjust.....:hmmmm: but some mention will loose power because got to turn back the advance timing.....:banghead:

---------- Post added at 12:26 PM ---------- 6 hour anti-bump limit - Previous post was at 12:24 PM ----------



Performance engine then yes, because they require very high RON fuel....
Not that u can feel the power increase... pointless... For RM1.1/L more if u think is worth it then is your money lo... Go pump v-power racing lo...

---------- Post added at 01:47 PM ---------- 6 hour anti-bump limit - Previous post was at 01:46 PM ----------



Less timing sure lose power n FC... What fuel u pump lately..? test with other fuel..?
Used Petron once, after that not much difference, then some thing knocking sounds, I need to get
it check. Tak tak tak tak sound when idling.

After that I pump back Shell still the same...:hmmmm:

Will get it check to see parts faulty or petrol problem...
 

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vr2turbo

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Used Petron once, after that not much difference, then some thing knocking sounds, I need to get
it check. Tak tak tak tak sound when idling.

After that I pump back Shell still the same...:hmmmm:

Will get it check to see parts faulty or petrol problem...
Idling time, tak, tak, tak, maybe tappets loose. Knocking is when driving.....
 

Dayline668

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FYI idle also will knock...
 

Supra_Fanatics

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Wah! then must be super high compression engine....
Told u my BLM is Mivec engine in Campro IAFM engine cover in disguise nia...:rofl:
 

Dayline668

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Wah! then must be super high compression engine....
No need high compression, normal engine running lean also will knock...

---------- Post added at 09:39 PM ---------- 6 hour anti-bump limit - Previous post was at 09:37 PM ----------

Told u my BLM is Mivec engine in Campro IAFM engine cover in disguise nia...:rofl:
Not dual mivec meh..?:rofl:
 

vr2turbo

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No need high compression, normal engine running lean also will knock...

---------- Post added at 09:39 PM ---------- 6 hour anti-bump limit - Previous post was at 09:37 PM ----------



Not dual mivec meh..?:rofl:
Unless it was tuned lean, but now mention pump Ron 95 get knocking already....
 

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just sharing info...my friend using type r engine b series...experienced using ron 95 fully for two month..knocking occured badly...when using mixture the knocking lower...when using fully ron97..the knocking settle.....
 

Supra_Fanatics

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No need high compression, normal engine running lean also will knock...

Not dual mivec meh..?:rofl:
I wish :rofl:

just sharing info...my friend using type r engine b series...experienced using ron 95 fully for two month..knocking occured badly...when using mixture the knocking lower...when using fully ron97..the knocking settle.....
Means my BLM must use RON97 only don't have knocking...hmmm indeed a powerful engine,
but seems slow when I drive :rofl:
 

vr2turbo

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just sharing info...my friend using type r engine b series...experienced using ron 95 fully for two month..knocking occured badly...when using mixture the knocking lower...when using fully ron97..the knocking settle.....
Exactly same problem for my VR engine.....:banghead:
 

Supra_Fanatics

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Red color? The pump handle or the fuel color?
V-Power Racing another 30sen premium over Ron 97 woh......:confused::banghead:

Now using octane booster, okay already.....:driver:
The handle, never seen red fuel before...Last time When Ron 97 and V-power wasn't
that expensive or much difference, I used to pump V-Power, until today the ROn97
is more expensive than V-power previously...
 

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The handle, never seen red fuel before...Last time When Ron 97 and V-power wasn't
that expensive or much difference, I used to pump V-Power, until today the ROn97
is more expensive than V-power previously...
If not mistaken, Ron 95 is yellow in color and Ron 97 is Red.....:driver: