95 or 98 RON
#3
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Originally Posted by Pauleds2
You don't have to mate but you will get more out of it if you do. They just run better on it.
An expert will be along in a minute to tell you why.
An expert will be along in a minute to tell you why.
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Originally Posted by willsy369
Ha Ha like it mate! Anyway you should use 98 if you can ( i actually use 100) because thats what the engine likes and is supposed to use. Basicly if you use a lower ron the engine will start to either 'pink' as early combustion starts forcing the piston down while still on it exhaust stroke comming up or in some case's (especially if u use too high ron on old crap cars, not a prob on the scoob) the engine will internally have a melt down. not good.! Willsy
Its a UK car - its mapped so it is able to run on 95 RON without pinking/detonation or damage. So if the car is 100% standard and is a UK model do not beleive the scare stories!! - or just read the owners manual instead!
It wouldn't meet Euro (2 3 or 4) emissions standards if it couldn't run on 95
Btw - it's when the fuel ignites on the compession stroke before top dead centre (BTDC) - not the exhaust stroke (that would be backfiring caused by missfiring from too lean/ too rich/ bad ignition system and excessive carbon). Also high RON does not cause problem in old cars. Although they would benefit from a few degrees more ignition advance- not sure where you heard that one from!
Last edited by Shark Man; 23 April 2005 at 02:10 PM.
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Ha Ha like it mate! Anyway you should use 98 if you can ( i actually use 100) because thats what the engine likes and is supposed to use. Basicly if you use a lower ron the engine will start to either 'pink' as early combustion starts forcing the piston down while still on it exhaust stroke comming up or in some case's (especially if u use too high ron on old crap cars, not a prob on the scoob) the engine will internally have a melt down. not good.! Willsy
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Alright hands up got the bloody stroke messed up! however the higher the ron the hotter your engine runs, as they combust at a higher temp. So personally i wouldnt use hi ron on old cars(and i mean all types not just subarus) It also says on the fuel flap to use 98!!! 95 is crap and u will not get the full potential fromyour car. Willsy
Originally Posted by jonny gav
PMSL...i have seen some bollox posted on scoobynet but this has to be in the top 10!!!!!!!!
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It also says on the fuel flap to use 98!!! 95 is crapp
Because yours say 98 on the flap - it doesn't mean everybody elses says 98, a good many UK cars will say 95.
Also most filler flaps say Gasoline - in the UK its called petroleum we use RON, many other countries use other octane rating systems. So make a note that it's the research octane number (RON) and not the Pump octane (PON) or Motor Octane (MON).
#13
Ron has the highest value for fuel quality, so if it says 98 if it's mon(doubtful) or pon(if you're in the us) it's higher octane than 98Ron, so why worry.
That's why crap US 92 octane fuel (PON) isn't really that crap at all, it's 95RON.
That's why crap US 92 octane fuel (PON) isn't really that crap at all, it's 95RON.
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