| Author | Message | ||
     Gregory M Lichtenson (Gml) New Member Username: Gml Post Number: 27 Registered: 09-2003 |
I have a sunoco gas station up the block from me that sells 100 octane fuel and believe it or not even higher octane.. cost about 5 or 6 bucks a gallon..How high can I safely go with out burning holes in the pistons etc..PS They have 105 or 110 octane as well anyway RSVP RSVP 777NYCEND,Peace and good health to all in Discoland, PS why do the headcover gaskets leak a little,remember not valve cover gaskets headcover gaskets..everybody I know people who own Discos,and more than just a few tell me the same thing ,just have a look near the vally gasket just below alt bracket... feed back feed back......RSVP RSVP...I use 92 octane on regular basis so their cant be much carbon buildup etc...is this a design flaww .....plus the other side as well right left front and same thing on left side left front right,signed why do they leak,and is this something we can all live with ,without replacing headgaskets.... | ||
| June H. Han (Junehhan) Member Username: Junehhan Post Number: 99 Registered: 04-2003 |
Gregory, higher octane fuels burn more slowly as they have the ability to withstand greater compression ratio's without detonating. You will get the greatest level of performance by running the lowest octane fuel you can without encoutering any engine detonation. You actually risk burning holes in the pistons by going with too low of an octane fuel. I would recommend that you run the grade fuel that your owners manual requires, and nothing higher or lower to obtain the best performance you can. If you run anything higher, you risk causing excessive carbon buildup because the higher octane fuels burn more slowly. In effect, it will almost have the same effect as if you were retarding the timing. Running way too high of an octane could even cause your engine to run so rich, it does nasty stuff like overheats the catalytic converters. Also, a lot of those high octane race fuels that many stations carry is leaded, and you definately don't want lead in your fuel since you'll poison the catalytic converters, and ruin the oxygen sensors. | ||
| Matthew (Matbor) New Member Username: Matbor Post Number: 2 Registered: 09-2003 |
Hi, I used in Australia, Shell Optimax (Has a Ron rating of 98+), used it for 6 months and it caused $1000 AU problems, had to have the valves fixed etc... Stick with the normal petrol, look where the car comes from !! Matt. |
