I still have a wrestling match about doing it going on in my head.... I need to drive at least 2500 3500 more miles on the oil I just put in unless it appears to be thinning out from fuel dilution sooner than I am thinking it will.

 

You need the pressure to pry the crank off the bearings and form the wedge on the leading side as the crank crawls up the leading side of the bearing..


Which is why most gas engines need roughly 10psi per 1000rpm

Usually with a minimum of 15psi at idle and often no more than 100psi at redline.

I also had to match my oil to not only my engines needs but to the journal bearing center section of the big honkin diesel turbo hanging off the manifold.

Which is fed from the head instead of the oil filter housing because of its own requirements per Borg Warner.

It needs no more than 80psi on cold start, 15 psi at idle, 30psi minimum under load and no more than 70psi under full boost so it doesnt blow by the seals.

Oil selection becomes incredibly complex very fast when you get down to what the engineers are trying to accomplish with one fluid.

 

This is the way I understand oil pressure. Had a talk with the tech at work and supposably 1 of our new trucks went 100000 mile on a oil change. I find it hard to believe because my truck is a little older and burns a few gallons a week. They missed 1 oil change and now that, I talked to him anyways and he knew something about oil. Our oil is semi synthetic and I ask him why it would be able to last that long with out a true bypass and he said of new tech that fixes shear damage. Thats the food grade polymer Viscon USA . It goes under different names but is the same. Its all starting to make sense now.

 

31.5 mpg today but I did go longer before I filled up though, why would that bring down the mileage? I usually do it at around 1/2 tank, this time it took 8.5 gallons. I'm not complaining or anything but this tank had a bit more 89 octane, about half and half to be exact.

Any thoughts

 

My mpg is 33-34 right now. I just put in Premium and the ecu does not adjust fully. The fuel trims want to pull fuel but is -2.3LT and -1.6 to -10.8 ST. Timing is higher than mid grade but not where it was after a few tank of premium was in there.

Just hope for warmer weather soon. I expect my mpg to go to 40 mpg this spring. Cold air intake hurts mpg because colder air needs more fuel. Thats where more power comes from and in the hot summer months it can help because it supply cool air and more power compared to a stock intake.

 

Maybe you need to get on the highway and blow it out ... That's what I heard old shade tree mechanics tell people to do all of the time.... It seems to wake up the ECU on my car... I wonder how much of the fuel mileage losses you guys up north suffer in the winter is from the increase in engine and drive train oil viscosity... I just can't get over how you get better fuel mileage in the summer and it is the opposite down here... Does the cold temperatures cause your cars to be in open loop all of the time or a whole lot more than normal?

 

I need to rev it out to 7000 rpm that will blow out all the carbon from 2 tanks of mid grade. My car goes into close loop in a few minutes in the cold. It stays there until full throttle or releasing of the gas pedal, otherwise its close loop all the time. There is a correction feature that happen when cold and air density too plays a role with the butanes in the gas. Temps up to 50- 80 the car gets the best mpg over that the mpg fall again.

I notice too when the Barometer falls its like high octane in the tank and the ecu pulls more fuel. Today the pressure is high and my fuel trims zeroed out like it needed higher octane.

 

The last time I was in my car I was seeing ignition timing advancing past 40 degrees on the Exxon premium I put in it on the 13th of February... The exhaust fumes have stunk every since I put it in so I think it might be ethanol free... It is more likely due to having driven so many miles taking it easy that I was not getting as much advance for awhile. I put the ETC in SP4 mode and got crazy a few times before I got more advance too... After driving in EC5 mode for a long spell even normal mode feels insane and SP4 results in wheel spin and hitting the 8200 RPM rev limiter at the same time in first gear and very late tire hookup in second... After someone in a faster more expensive car sees that happen they are reluctant to pull up beside me at a signal light... I guess that kind of stuff is why my fuel mileage is suffering so much.

 

I was thinking I would see a drop in winter MPG, however,my last tank fill-up gave me 38 by the numbers - MM showed 37.5 UG 41.5.
Still trying to get the UltraGuage to calibrate the fuel tank.
I'm running 93 octane now and the two appear to be closer and the UG has 'discovered' the in-tank fuel level sensor.
Fuel trims still 7 to 10 positive.

I'm watching the timing advance but not sure when to best monitor it - cruising speed I'm guessing???

Silver - You think two tanks of regular would carbon up your engine??

What I've learned about 'blowing out' the carbon I learned from V-8's.

Open country road at night. Slam second gear up to just shy of 7K then, keeping it in gear, let off the throttle completely.
Back pressure rattles the pistons and bellows of brown smoke obscure the rear view if the engine was in-fact 'carbonized' and you do it right.
Either way it's fun... at least with 275 horses coming out the barn door.
Haven't tried it with the Fit.

Repeat two more times. All should appear clear.

 

The cool thing about the old days and carburetors was pouring a quart of ATF and Berryman's B12 down it with the throttle wide open before blowing it... Oh God I loved to do that.

 

I still remember the first time seeing my cousin do that to an old Merc he had chop-verted to a flatbed... I mean I always had looked up to him, but from then on he was a god.

 

The first car I saw it done on was a gray Hudson Hornet with a blue top.. The old man that owned it hadn't driven it in a long time so when he tried to start it I think it back fired or something and blew the muffler off.. The old guy held the pedal down and the noise scared the hell out of me and my little sister started screaming and running in circles... A guy from a garage a few blocks away showed up and worked on it after the old guys daughter came out and took his keys away from him and made him go inside.. When the mechanic did the smoke thing it really freaked me out and my stupid sister hid under the kitchen table... That was way before I started school... It is weird how I have been remembering things that far back recently...

 

Remember Coyote, it's those things at those impressionable years that's brought us to do what we do today ;-)

You know, come to think of it, I believe Butch had a Hudson. Thing sat in our side yard a winter, then he came by and began cutting it up. I remember brown cloth seats and chrome on the enameled metal dash and those beige knobs and round dials.

Ended up with everything behind the front bench gone, including the doors and a plank wood floor in the rear. Windshield was somehow left in place. He'd sneak me out on the woods roads, mom really didn't like that. Next summer it was gone. He went on to devote his attention to endangered species and Belgium Draft Horses.

 

Butch sounds like somebody I would get along with.

 

I just notice the knock retard, The ecu wants to pull more fuel and the timing is up but not full advance before I put in 89. I thought the ecu would advance it faster with the MAF but its a step up process. It will take another tank.


KC you must keep your car in the garage, I am glad your getting that mpg.

I did a few full throttle pass and it warmed up today. I calibrated the Ultra Gauge and it says I am getting 33 mpg. The real time mpg is 30-60 most of the time so the correction is around 27 percent which kinda gets me mad.

 

In Chicago we would take a empty beer bottle and fill it up with water and trickle it down the carburetor. It work really good as long as you kept the motor running. Looking back I guess I was luck not to hydro lock the engine.

I also remember problems with the valves sticking and would have to use rislone Rislone Engine Treatment. Thats when oil was not that good.

 

Garage has been car-less for a log time. Table saw and sheeeetrock and fire wood and too much other crap keeps the FIT outdoors. My MPG is by the numbers [old fashion way] unless it says MM of UG. Running Ultra93 I'm beginning to think the MPG's are a bit down???

Fuel trims are up - LT +10 - +11, I'm thinking there's no conclusions to be drawn.

Talk to me about observed timing advance. Today, 5gal into running premium, I'm seeing 50d advance on a steady 65MPH minimal load cruise. Not sure of the numbers when I was running regular, but I'm thinking they were at least 10d lower.

 

The fuel trims worry me as to not being around zero. So maybe its not set up right, engine size, MAF not turned on and set torque to 4300 not default 4400. My timing is no where near that high. The highest it goes is 47 and comparing it to Hondata data, its in MBT.

The mpg says you got a good car, and if I got that mpg with regular gas I would use it. This might be the difference between conventional gas and RFG. If I use regular the motor is louder and mpg is down 3-5 especially in the summer, the car shifts different and have to press down further on the pedal to move. Even though I drive mostly highway time wise its 50/50.

 

There are some crazy stuff I remember from hanging around service stations in the 60s... Crazy Mexicans putting chili powder in radiators to seal leaks and having it work.. CocaCola being used to clean bugs of of windshields... Evaporated milk being put in inner tubes to stop tiny leaks.. One Bayer aspirin was dropped into each battery cell at the first sign it was going bad and of course the thing about never putting a battery on a concrete floor or it would go bad.. People really believed that so we had to place batteries we charged on 2X8 boards.. We used brake fluid to clean tires on cars we washed by hand and detailed out for $1.50 and used antifreeze to dress vinyl tops, Tide with non detergent motor oil mixed in a bucket with water was our car wash soap.. If someone had a bad wheel cylinder and needed to get home we would fill the brake fluid reservoir, pinch off the line, wish them luck and send them on their way... The weirdest thing I think I ever saw was a car from Louisiana with dead bugs on the rear window.

 

The American way, if theres a will it will be done. Thats what corporations took away. You need to write a book. This stuff will be gone forever. The battery stuff still applies to battery back ups. As far as battery's being placed on wood boards, theres some truth to that the ground is a neg. so it would discharge the battery's and become useless, unless its off the ground it would retain it charge longer.