Ok to use 87octane for highway trips?
#1
Boost 4 Life
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Ok to use 87octane for highway trips?
I usually use 94 octane when I plan to go in boost but I do lots of highway miles lately and was wondering if I am just wasting my money.
Would 87octane work for cruising on the highway?
87octane = $5.06 per gallon
94octane = $5.59 per gallon
Would 87octane work for cruising on the highway?
87octane = $5.06 per gallon
94octane = $5.59 per gallon
Last edited by turborx8; 05-31-2008 at 12:11 PM.
#10
IfYerNotWasted..TheDayIs
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Marc_GS... Your location is Canada's Capital?!
turborx8 and I suggest you check out the Ottawa Mazda Club... We're looking to add more RX8's as we're over-run with 3's lol.
turborx8 and I suggest you check out the Ottawa Mazda Club... We're looking to add more RX8's as we're over-run with 3's lol.
#11
C4 burns real good
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Ok, let me get this right, you have a turbo, and you want to run 87, ok, at least you asked if it was ok, but it seems your mind is already made up about the subject. So why even post? But the real kicker is you admited to running your boosted 8 with no EM... for three weeks. Nice.
#12
Out of NYC
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Ok, let me get this right, you have a turbo, and you want to run 87, ok, at least you asked if it was ok, but it seems your mind is already made up about the subject. So why even post? But the real kicker is you admited to running your boosted 8 with no EM... for three weeks. Nice.
when u're not in boost, Turbo is just a exhaust restriction, nothing more.
#15
This is his choice. If he truly knows how to stay off boost, and remembers that with 87 octane he must drive it like it like grandma (cruise control at a steady 70mph will work), then I do not see a problem. There is a risk, but for pure highway, and being aware of the octane you have in it, it will work. Just remember not to boost at all to be 100% safe. Enjoy!!!
#16
Hooked on go-fast crack
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Dan, I don't have a detailed technical explanation for why it would be bad to run 87 off boost. It sounds like it would be fine BUT say you were to forget for a moment and get into boost while leaving a stop light. I know you specified highway use, but there's always the odd stop light, stop sign, etc. Would that damage the engine? You've got a really nice and fairly unique (at least around here) machine, and I would really hate to see anything bad happen to it.
#21
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A boost controller can't reduce boost.
You would need to unhook your wastegate actuator to do that.
I don't know what kind of highway driving you do, but I spend more time in boost on the highway than I do in daily driving!
You want to go to this extraordinary step just to save yourself $3 per tank?
You do realize that you would have to continue this behavior for a thousand tanks of gas before it would pay for a rebuilt motor, right?
You would need to unhook your wastegate actuator to do that.
I don't know what kind of highway driving you do, but I spend more time in boost on the highway than I do in daily driving!
You want to go to this extraordinary step just to save yourself $3 per tank?
You do realize that you would have to continue this behavior for a thousand tanks of gas before it would pay for a rebuilt motor, right?
#23
Grand Chancellor
That's poppycock! everybody knows including John Candy that the Capital of Canada and therefore centre of the universe is Toronto. Leaf rocks!
Why turbo if you cannot pay for the high octane?
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