- :
- 06 LS MS6
07 BM GT (shell has been struck from the roll)
NO s***
took me 10 min to get enough to mow the grass, it would fill the hose and quit, and I could only get some 3/9 od in there anyway
Help please
- Thread starter Mazda_Thr3
- Start date
NO s***
took me 10 min to get enough to mow the grass, it would fill the hose and quit, and I could only get some 3/9 od in there anyway
That information is out of date (i.e. the manual has not been updated to reflect the current ECU strategy).
The 2006 MS6 suffered from a well documented problem with the throttle being limited when knock was detected. That problem was identified and corrected in 2006:
http://www.mazdas247.com/forum/showthread.php?t=123633337
Currently, excessive knock (caused by 87/89 octane fuel) will result in retarded timing and limited boost (controlled by the BCS).
Mazda_Thr3
Member
- :
- 2008 Mazda 3i Touring Value
i drove it for him last night. he is in that "new car paranoid" phase where he thinks anything is wrong with it. man its amazing how 87 vs 91/93 will change a turbo car. got on it in second gear once just to see.....felt like i was driving a mazdaspeed protege lol. but we burned off most of the gas. i told him to go to shell and get teh 101 thats avail.
watch out 8.5ms3, matsuda will bring you down.....bring you down to china town!!!(gun)
mr_mazda329
Member
- :
- 97 Mazda Miata; 09 CWP Mazdaspeed 3
slap your friend upside the head with a rolled up newspaper and say, "No, bad boy!"
This is the type of neglect i hate. Blaten disgregaurd for car care. That motor may have a short life if the owner keeps this up.
No boost. Drive normal. Don't lug engine. Refill with 91 or higher next time.
This is the type of neglect i hate. Blaten disgregaurd for car care. That motor may have a short life if the owner keeps this up.
No boost. Drive normal. Don't lug engine. Refill with 91 or higher next time.
last i checked 2008 is more recent than 2006.... note that it says if 6* of retard does not fix the knock, it enters limp mode, and it is the same type of limp mode i posted, not low boost and retarded timing:
"What is Mazda doing about this?
Mazda is adjusting the # of cycles it takes the knock sensor to throw the car into 33% throttle mode through a PCM/ECU reflash."
LMAO
squidmotion
Member
ran a tank of low octane through mine once when it was new, by mistake. it was down on power a bit, but no worries, a tank or two of 93 and it's been fine ever since....
all it does is make it knock easier, then the proper sensors shut the timing or throttle down as needed to keep the engine safe.... all part of God's great plan.
tell your friend not to be so paranoid.
and running it in 5th gear? puhleeeze. just drive it like normal, and go through the gas, probably gonna take a tank or so to get it back to normal anyway.
all it does is make it knock easier, then the proper sensors shut the timing or throttle down as needed to keep the engine safe.... all part of God's great plan.
tell your friend not to be so paranoid.
and running it in 5th gear? puhleeeze. just drive it like normal, and go through the gas, probably gonna take a tank or so to get it back to normal anyway.
As I said, that information is out of date (which often happens when new manuals are created with a lot of copy/paste). That was the strategy of the early MS6 calibrations (overly sensitive to anything less than ~92).
In fact, the CX-7 owner's manual states that 91 octane fuel is recommended rather than required. According to the information that you posted, the CX-7 would go into "limp mode" on anything less than 90 octane, which is certainly not the case.
In any case, the point of my first post was this:
Simply drive the car with a lighter right foot until the next time you fill up and don't worry about it otherwise (nothing is going to blow up).
I wasn't looking to start a pissing match.
Mazda_Thr3
Member
- :
- 2008 Mazda 3i Touring Value
he ran it down and found a fuel mixture chart online that shows how much of what octane he needed to put in to make it higher than 91. all in all, his car is getting back to where it was. hopefully he learned his lesson 
but i told him to go put 101 in his car. we have a shell that sells that for like 7.XX a gallon haha.
but i told him to go put 101 in his car. we have a shell that sells that for like 7.XX a gallon haha.slashsnake
Member
ahhh the joys of living at altitude. over half our gas stations don't have anything above 89. Went on a drive yesterday, and passed 4 places before I found one that had more than just 85 and 87. (higher alt = less air mass in cylinder = less fuel, lower absolute compression, therefore no knocking.... on a non-turbo...) But sucks for turbo cars meant for that actual octane.
So it is find 91 or bust out here. Was tempted to get some octane booster just in case, still might (Maybe figure the numbers on 3-4 gals to see if it is worth it), but like already said, a 16 oz might increase .2 octane overall in a full tank. I don't want to carry a gallon of toluene in the back of my car (buy it at painting stores if you want to get it, same price for a gallon as you will usually pay for a 16 oz bottle at an auto store)... I'll just have to start paying attention to where the good gas is out here.
So it is find 91 or bust out here. Was tempted to get some octane booster just in case, still might (Maybe figure the numbers on 3-4 gals to see if it is worth it), but like already said, a 16 oz might increase .2 octane overall in a full tank. I don't want to carry a gallon of toluene in the back of my car (buy it at painting stores if you want to get it, same price for a gallon as you will usually pay for a 16 oz bottle at an auto store)... I'll just have to start paying attention to where the good gas is out here.
