which is better for a 225 ho etec engine? 93% ethanol free or 87% ethanol gas with stabil ethanol treatment added?
which is better for a 225 ho etec engine? 93% ethanol free or 87% ethanol gas with stabil ethanol treatment added?
anybody there? hellooooooooooooooooooooooooooooooo!
It has been stated that if you run the 93 octane in the motor that is designed to run on 87 octane your motor would be subject to pre-ignition. I think the middle grade would be acceptable! I run and treat the 87 octane in my motor. JMO.
Dan Burnette - Marietta, GA
Triton 18TRX - 200 HO G2
What would cause the pre-ignition?
<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by Danrude »</td></tr><tr><td class="quote"> I run and treat the 87 octane in my motor.</td></tr></table>
Same here.
Cheers!
Wade
1999 Sprint 207 F/S
1998 Johnson Venom 200
Model: J200STLECE
Serial: G0449630B
<table width="90%" cellspacing=0 cellpadding=0 align=center><tr><td>Quote, originally posted by Danrude »</td></tr><tr><td class="quote">It has been stated that if you run the 93 octane in the motor that is designed to run on 87 octane your motor would be subject to pre-ignition. I think the middle grade would be acceptable! I run and treat the 87 octane in my motor. JMO.</td></tr></table>
PRE-Ignition is from Too LOW of an octane for a Compression ratio. Raising the octane stops pre-igniton.
the word here is pre--- before the piston is at the optimal level
01,225,HO,Rude Ram,1;86 gears 93,nitro 190 76.6gps,26tro4 m#E225FHLSIF,S#G04956186
It is just what I have read, not a fuel expert. It changes the flash point is what I understand.
Dan Burnette - Marietta, GA
Triton 18TRX - 200 HO G2
il always believed the reason for higher octane levels increases the stability of the fuel at higher compression hence when you run higer compression motors you can advance timing on them to inrease the compression stroke higher to TDC to achieve a higer derived force from the combustion of the fuel. there fore with a higher compression you need the higher octane to achieve stability to prevent preigniton. if you run 87 which degraded to lower octance values such as 85 or so the pssibilty of preignition is greater because of the stabilty factor at the high compression motors such as the E Rudes. Im not a mechanic but i have done extensive research on this. I would try googling it and see what information pops. Up. I always run 89 non ethanol mroe or less. i cant believe they believe this corn crap is so great other making corn growers rich!!! The found a way to achieve money from moonshine. In a nutshell. LOL
JMO
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