Running 87 or 87+Octane Booster in a G35 5AT

[erikill]

Anyone ever done this? Gas here in ATL is ridiculous, I finally found some premium today, but I may not be so lucky again.

I know I can run on 87, but I've never put 87 in, nor plan to. I was reading that it looks like about 10 things of STP to raise a cpl octane for 87.

[Sentientbydesign]

What's the ETA on restoring the refinery down South?

If you go with 87, I would stick with a large brand. I personally hate Arco/BP/Thrifty gas. I think it's cheap crap.

[joe603]

Hopefully by this weekend it should be almost back to normal.

There are some really smart people in this forum who may be able to answer your question. I wouldn't recommend using octane booster in the G...

Steve, any input?

[erikill]

Well supposedly they're pumping out more - they lifted the "dirty" blend restrictions although wouldn't it be smarter to use a uniform type across the board....

I usually prefer Shell or BP, but I've even heard of them watering down gas around here.

[Tampa G35 Sedan 6MT]

I think that stuff is crap! Now The Lucas injector cleaner really works well!

Fixed the problem i had in my Jeep!

DJ

[Tampa G35 Sedan 6MT]

Shell is probably the best as they only use their oil!... Bp is nuber 2

I know Hess has really crappy gass! (I never go there)

Also the BP by my house has 100% gas and that is the only place I get gas Now!

DJ

[SteveTheTech]

Welcome to NICO!

Is there just no gas or are prices just nuts? I don't see that up in yankeeville plus I stay away from the news.

It sounds like you have taken very good care of your G and it's good to see. I think this is a rare occasion. If you had to your car would be better with the 87 and no octane booster. The chemicals in boosters may be harmful to the lines, pump, or injectors. The detergents in the premium gas should keep your fuel system clean enough that a short stint with regular should not cause any longterm damage.

[SVTCOBRA]

Question for the experts:

My 04 G35C manual makes it sound like my engine will die if I put in 87.

My 05 G45S manual says 87 is OK.......

Engine are about the same aren't they??

Please explain if there is REALLY a problem with putting 87 in a G35C.

[Brabusx2]

mkay, car runs on 87, ur ECU will adjust the setting itself and sense what kinda fuel you put in, as in Octane booster, they are just a waste of money, if u want fuel injector cleaner, go with Cheveron Techron cleaner, everyone on the MBworld Forum loves it, best thing to go with.

[erikill]

Welcome to NICO!

Is there just no gas or are prices just nuts? I don't see that up in yankeeville plus I stay away from the news.

It sounds like you have taken very good care of your G and it's good to see. I think this is a rare occasion. If you had to your car would be better with the 87 and no octane booster. The chemicals in boosters may be harmful to the lines, pump, or injectors. The detergents in the premium gas should keep your fuel system clean enough that a short stint with regular should not cause any longterm damage.

There's an artificial shortage created by mass panic (people topping off constantly / filling up gas cans). I hope it gets better soon.

Yea my concern is the air / fuel ratio with the spacer, since I've never run regular in the car (and took it a while to get correct with the 93).

I just hope that it gets better by the time of my next fill up.

[SteveTheTech]

The gas door on both cars say premium though.

Long term engine wear is greatly decreased with premium. Fuel economy is usually better with higher quality. I have found ~8-10% increase in long term testing on the wifes' commuter. Using 93 over 87 or 89. That's just what I have seen and I try to take notice of customers observed fuel economy can be improved with regular maintaince and good quality fuel.

mkay, car runs on 87, ur ECU will adjust the setting itself and sense what kinda fuel you put in, as in Octane booster, they are just a waste of money, if u want fuel injector cleaner, go with Cheveron Techron cleaner, everyone on the MBworld Forum loves it, best thing to go with.

There are several key differences in the two vehicles you have mentioned here. First Infiniti is designed in Japan where fuel standards are much different and higher qualities of fuel are standard . Secondly using a lower octane fuel with a lower resistance to burn will cause preignition as the fuel will ignite in a shorter period of time than the ECU parameters are designed for. Your computer will sort of adjust but it will not be running at it peak performance. Third your owners manual specifies not to use octane booster, depending on the chemicals used damage to the injectors of fuel circuit may be caused. European cars can run on crap usually most Japanese cars will not work so well.

[Jacko3]

I have literally parked my G until enough gas is available (premium). I always have at least 75% tank full of gas. I have only added 1.5 litres of mid grade to the existing 75 % of premium. I will not risk it with my G. Thank God i have the little Nissan to fall back on. She has been a darling work horse these past few days. I am glad I never sold her. And this fuel crisis has taught me a lesson----never ignore an old faithful like the little nissan---they still have their uses.

[jbillion]

Shell is probably the best as they only use their oil!... Bp is nuber 2

I know Hess has really crappy gass! (I never go there)

Also the BP by my house has 100% gas and that is the only place I get gas Now!

DJ

I agree, I only use Shell and BP in my M (in that order). I only use 93 octane, around here we usually have the choice of 87, 89 or 93. We dont have any 100% gas anywhere in the area that I know of. I have been seeing the 10% ethanol sign for 5+ years around here. I heard that ithat it is because of the size of the city, they mandate 10% ethanol blend.

[marlin29311]

What's the ETA on restoring the refinery down South?

If you go with 87, I would stick with a large brand. I personally hate Arco/BP/Thrifty gas. I think it's cheap crap.

What's wrong with BP? BP is probably one of the best fuels out there - it used to be because of the Amoco thing, but now that it's fully integrated BP makes one of the best burning fuels that cleans as well - similar to shell's V-Power.

Octane boosters = Bad idea. It's better to run a good 87 octane fuel versus trying to boost it. You run into purity issues, which can cause issues for your fuel line as well as the rest of your engine. I had a neighbor who put in a booster every other fill up because he thought it was a good idea and ended up rotting out the fuel line as well as causing internal engine damage. I would stay away...

[erikill]

Octane boosters = Bad idea. It's better to run a good 87 octane fuel versus trying to boost it. You run into purity issues, which can cause issues for your fuel line as well as the rest of your engine. I had a neighbor who put in a booster every other fill up because he thought it was a good idea and ended up rotting out the fuel line as well as causing internal engine damage. I would stay away...

Yea that's what I've read / heard on a few boards. I guess I need to always keep a 5 gal of premium around (use it in the mower instead of 87) and stabilizer. Any recommendations on stabilizers? I don't forsee this problem going away for a couple weeks to a month.

[zozoka1212]

That is interesting. Here in Canada we have premium. I guess we are lot more calmed people. We did not get in panic over a little stronger wind. hahhha j/kOr maybe we just pay too much already and nobody can afford to store more gas in garages.



We are Poor Canadians.

OH CANADA.....

zozo

[Sentientbydesign]

What's wrong with BP? BP is probably one of the best fuels out there - it used to be because of the Amoco thing, but now that it's fully integrated BP makes one of the best burning fuels that cleans as well - similar to shell's V-Power.

BP owns Arco and Thrifty. My experience with their gas is that it's some of the cheapest garbage I've ever used.

It also looks like they fell off of the Top Tier list. I commend them for their new "Beyond Patroleum" vision, but if their gas sucks...it sucks!

[zozoka1212]

Oh I forgot to mention You guys are more then welcome to come here and pump gas. For only $4.83/gl.



zozo

[joe603]

They had a guy on the news...a Pep boys manager that said people should use octane booster in their cars that require premium! I was soo pissed and yelling at my TV!

I've never liked Pep boys ever since they fired a military member because he was deployed. I say we boycott them!

[marlin29311]

BP owns Arco and Thrifty. My experience with their gas is that it's some of the cheapest garbage I've ever used.

It also looks like they fell off of the Top Tier list. I commend them for their new "Beyond Patroleum" vision, but if their gas sucks...it sucks!

Very interesting - maybe its a west coast thing? On the East, BP is revered as one of the highest quality fuels. Amoco was probably the best fuel ever made for your engine, and then BP bought them and started using their fuels. You can ask almost anyone in the petro industry and they'll agree...

[Sentientbydesign]

Arco and Thrifty are regarded as "economy gases" out here. They are usually cheaper per gallon than Chevron, Mobil, and Shell.

Most Nissan enthusiasts that I've talked to hail Chevron as being amazing, but my I30 always ran rough on it. The Shell gas seemed to smooth it out. That is primarily what my wife and I use now. 89 for her Celi and 91 for the G.

[kmckis1029]

Yeah BP and chevron are tops on the east coast i have never heard anything bad about them...

but i had to get AirForce super 93 today.. as no gas station had 93... in my driving distance at least... lol... was on dead E looking for gas!

[Jacko3]

Yep! Its either BP or Chevron for me---nothing else. There is only one pump in Chevron gas station in almost a 5 miles radius that has premium gas in my area. I had to keep pumping even after my G was full and the pump handle kept clicking.

Oh, I did notice that the Chevron midgrade I earlier used this week worked well with the BP premium grade. I am beginning to get a funny feeling that Chevron premium gas might be a tad bit better than BP premium gas. Switching maybe happening soon. BP is great but I feel Chevron is a lot less compromising in their quality. And Chevron is always expensive and they don't seem to care--but good stuff though.

[phil4watching]

Quiktrip is where it's at!!

[G37 Man]

anyone using Sunoco gas? I have never heard anything wrong with their gas believe they are sponsor for NASCAR! They do offer up to 94 Octane Gas

[SteveTheTech]

That's what I have used solely for years. Either 93 (if available) or the default 91. It's good stuff.

[Jacko3]

Do you think mixing 93 and 89 Octane ratinf gas will give you something close to a 91 octane rating gas?

[marlin29311]

Do you think mixing 93 and 89 Octane ratinf gas will give you something close to a 91 octane rating gas?

That's basically what stations do to get midgrade - 89 is a mix of the 87 and the 93 usually.

By mixing 89 and 93 you are basically just uping the amount of 93 in the 89. So in essence you are blending more 93 with the 87...

[Sentientbydesign]

That's basically what stations do to get midgrade - 89 is a mix of the 87 and the 93 usually.

By mixing 89 and 93 you are basically just uping the amount of 93 in the 89. So in essence you are blending more 93 with the 87...

I've heard the same thing. I've actually heard that the mid-grade is usually made by overflow from the low and high grades. I'm not sure of the validity of that, but I was told that they allowed excess premium to overflow into excess regular to make mid-grade in a separate tank.

Sounds plausible, but kind of unusual.

[sweetcarz02]

Anyone ever done this? Gas here in ATL is ridiculous, I finally found some premium today, but I may not be so lucky again.

I know I can run on 87, but I've never put 87 in, nor plan to. I was reading that it looks like about 10 things of STP to raise a cpl octane for 87.

I drove a tank on 87 during this fiasco and I finally just ended up putting the G37 away until things get less stupid around Atlanta. I ran on a tank of 87 in my car and it ran fine, it would misbehave a little on start up but I would just avoid spirited driving and you should be fine. Hopefully we get gas again one day. Good luck, I saw my neighbor putting 87 in his Maserati the other day so I guess life could be worse.