Getting better accelaration and mpg with 89octane

Quote:

---

Originally Posted by cg1349

At 35psi, the car feels sluggish. There is more friction between the tires and the pavement, which causes the engine to work harder to spin the wheels. This uses up more gas. In terms of wear abnormally, the tires are rotated every 6,000 miles. I did the same on the tires on my Sentra, and they lasted for 42,000 miles. The were designed to last for only 36,000 miles. More air = better mpg and longer tire life.

---

more air= less traction(not just for going but more importantly for stopping).
= poor ride quality
= no matter what you think......... your tires wear unevenly, just like any tire manufacturer will tell you and i think they would know because of the decades of extensive R&D that they, DOT, and insurance companies have done. as well as independant studies. the list goes on.

You run your 40+ psi, I'll run what Mitsubishi put on my door... 32 front, 29 rear.

To get better gas mileage.... I won't sacrifice safety. I won't.

What do i do?
Well on my 2.0l, 50 trim turbocharged 24 psi, 720cc injector, 255lph fuel pump, with big 8 inch wide tires..........

I lean the closed loop a/f ratio out whiel cruising to 16.5:1 a/f. And i get about 36 mpg.




why don't you just try something like that to get the mileage you want.
Instead of putting yourself and others in danger.

I fill up with 93, usually with a half a tank and get over 200 miles on a half.

I just read the research info about the 99' Galant at cars.com and for the V6 engine it says regular unleaded is recommended. It didn't say premium at all. I don't have the owners manual and the sticker on the gas cap was removed, so which is it for the V6? Regular or premium?

premium on the v6

i run 91 on my i4 with soso driving (easy n hard driving ) mortly easy driving i get almost 360 miles of a full tank i wasnt getting 250 using 89 so thats why i use 91 octane

I use premium, better performance than 87/89 octane.

When I used to take my car to the garage for servicing they'd always put 40psi in the tires, very unpleasant when hitting a bump or pot hole.

I always use 91/93. Its 55-60 dollars to fill from a quarter tank. 4.29 for 91 octane

damn are you guys serious? ive gotten like 250 miles from a full tank on my 1-4 G at the most, i use 87. does it really make that much of a difference

Quote:

---

Originally Posted by cg1349

I just read the research info about the 99' Galant at cars.com and for the V6 engine it says regular unleaded is recommended. It didn't say premium at all. I don't have the owners manual and the sticker on the gas cap was removed, so which is it for the V6? Regular or premium?

---

premium for V6. regular for I4~

i was using 87 for about a year on my g and just recently went to 91 and BIG difference more hp and drived alot smoother

Well cool im not to worried then, I usally run 89 octane, on a 4cyl Non turbo Automatic
I get horrible gas milage around town. But on the trip to sac. i got 320 miles on 13.2 gallons of Gas. ( Untill the fuel light came on)
But around town, i average 17.5 MPG. I usally fill up at half and average between 120-130 Miles

how about for an INLINE 4 CYCLINDER, what kind of gas do u prefer?

ive been putting 87 unleaded in my tank for about 2-3 years, it says unleaded only but im looking for more info

is it ok to use 87 on the 4 cylinder engine?

Quote:

---

Originally Posted by Cobra

is it ok to use 87 on the 4 cylinder engine?

---

yes it is

Gonna sell this car. It only has 47k miles on it. It's a '99 Galant ES-V6. Car runs fine, but needs several repairs/maintenance. It's not worth me paying for car repairs when the car is old. $2,000 is my going price. Thanks.