my ex-father-in-law told me never put autolites in GM product.

 

Aftermarket CAI does NOT improve normal driving fuel economy in any engine with a MAF.. I dont care if you think it does or not, there is no way it can. You cannot prove it should. I can prove it cant. you know.. like with sciency stuff.
- Blazer comes with Cold Air Intake stock
- Freer flow filter will help WOT performance.. that's it.

10% does not trash fuel pumps. If it did, I would know it. Ohio has had it mandatory for many years.
I DO know 10% decreases mileage almost 10% because it USED to be seasonal.
In fact I have looked at alky free stations in some states and from just the names, I'd rather takes my chances with my brand with 10%.
Bad / no name gas and / or stations with bad tank maintenance kills fuel pumps and cats.

Cleaning a MAF actually MAY decrease your actual fuel economy. Just before you start seeing performance issues you might notice higher mpg due to running lean.

Replacing O2's may help a little due to faster switching times. Otherwise you probably wont see much if any difference. If the O2 switches slower the VCM mapping DOES take that into account.

Change to all synthetic lubes - except in the AT unless you know the fluid was flushed in the last 25 k

If you drive mostly highway, ditch the clutch fan and install electric radiator fan. Mostly city stop and go.. you probably wont save any money on gas for same cooling capacity. Unless you count winter in

Run 36 lbs tire pressure. May help some depending on sidewall stiffness. More than that probably wont.

Make SURE your Thermostat keeps coolant temp at 190. And gets it there quick.

MAke sure your EGR works well and has free flow. Exhaust Recirc actually allows the engine to run leaner and without damage from too lean.

Driving a Bravada? Might want to pull the driveshaft to front diff. I'm even thinking about getting a couple junk cv shaft and pulling the full cv and just using the spline shafts. Prolly not worth hassle.

 

Ah.............. the voice of reason, mine gets better milage just after it's washed and has a box of fresh doughnuts in it.

 

I agree that the cai does nothing really for fuel economy. I had one in my last truck and loved the sound coupled with the flowmaster. That was my biggest reason for getting it. And it was a hella deal lol.

As far as the plugs, I run the oem delco platinums and delco (or delphi) wires. The cap and rotor I bought a skip white unit off ebay for 50 bucks shipped. Good deal. Comes with a new distributor and accel cap and rotor.

 

well part of my problem might that I only have to drive 2.5 miles to work so it never really gets to operating temperatures. I watched this morning and it just barely got to 192 about 2/10th of a mile from work. so it seems I am not getting to closed loop during my in town driving.

I looked at the Cold Air Intake system and studied it for a bit, I can't really see over how the it would be any better than factory either. it looks neat but just not seeing much of a improvement, just a fancy piece of chrome under the hood.

It might improve air flow, but as stated earlier with MAF it not going to make it any better, it will only adds bling.

 

I keep forgetting to mention that as a plus for CAI. I FULLY UNDERSTAND that..

Dano.. dang! You need a licensable Golf kart.
Hope you find reason to drive for one hour straight once a week. Change oil every three months minimum.. and mind your P's and Q's.... dont use brands starting with those letters.
V

 

well the blazer had been only getting attention the last 8 year only when my wife would have some kind of a problem, and since it was her vehicle then and now mine. I learned a long time ago, I don't fix anything on her vehicle until she say there is something wrong with it. If I would seen something that needed attention and I fixed it, then she would claim something wasn't working right, so I waited until she said some was wrong then fix it and there was peace and harmony in the world.

now that it mine to deal with I am going back and fixing all the thing that are wrong with it. I used to work in a car lot years ago, and squeaks and rattles drive me crazy, and poor performance is not exceptable. so the last 2 or 3 weeks has be stop the rattle and squeaks, now I have moved on to fixing and tuning part. catching up with all the preventive maintenance and leaks and stuff.

what is your opinion on K&N stock filter replacements or just stick to AC filter.

 

If you want a performance filter I would go with an aem dryflow, the oil in k and n messes up the maf. Unless you don't mind cleaning the maf everytime you oil the filter. Aem makes a stock drop in dryflow filter.

 

 

Why did it take me sooo long to learn that one thing.......