madmax Posted November 1, 2003 Report Share Posted November 1, 2003 Does or has anyone use these "gas saving" devices such as the "Tornado" and get better performance and fuel savings? My '88GP only gets around 13 mpg at best even with 89 grade gas. Can't seem to find any problems at all. Max Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 1, 2003 Report Share Posted November 1, 2003 Tornado=junk What do you get on 87? The '89 GP I had with a 2.8 got real bad gas mileage on 89. Alot better with 87. Quote Link to comment Share on other sites More sharing options...
madmax Posted November 1, 2003 Author Report Share Posted November 1, 2003 Hmmm. I had a bad feeling about the "Tornado" so I'd thought I would check it out to make sure. I've ran 89 for about a month to see if there would be any mpg improvement. So far, 87 and 89 are about the same. Guess I'll go back to 87 and save a few $. Max Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 1, 2003 Report Share Posted November 1, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted November 1, 2003 Report Share Posted November 1, 2003 My '88GP only gets around 13 mpg at best even with 89 grade gas. Can't seem to find any problems at all.Max have you cleaned your throtle body? EGR valve? i would start there befor buying gimicks' Checked pluges and wires? Fuel filter, airfilter, and changing oil on regular basis? what motor is in the GP? Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 1, 2003 Report Share Posted November 1, 2003 He would have a 2.8. Quote Link to comment Share on other sites More sharing options...
topless94style Posted November 1, 2003 Report Share Posted November 1, 2003 Best way to save on gas is.......................GEO METRO Quote Link to comment Share on other sites More sharing options...
Dannymik Posted November 1, 2003 Report Share Posted November 1, 2003 Best way to save on gas is.......................GEO METRO Quote Link to comment Share on other sites More sharing options...
90lum31v6euro Posted November 2, 2003 Report Share Posted November 2, 2003 metros = shyte! gotta go with the ford festiva Quote Link to comment Share on other sites More sharing options...
TeeJay3800 Posted November 2, 2003 Report Share Posted November 2, 2003 Don't use the tornado. The tornado device only works for carb cars, not on multi-port fuel injected engines. This is because the device is placed before the throttle body and all the spinning or "vortex" action is lost by the time the air flow makes it's way thru the manifold, to the plenum, and finally thru the ports to the combustion chambers. All the thing actaully ends up doing, therefore, is creating a restriction for the incoming air. It might have a benefit on carb style intake manifolds, but certianly not on our FI style manifolds/plenums. Quote Link to comment Share on other sites More sharing options...
madmax Posted November 2, 2003 Author Report Share Posted November 2, 2003 have you cleaned your throtle body? EGR valve I've cleaned the tb and iac, but not the egr. Recently the plugs, wires, and fuel filter have been replace. The GP starts and runs much better with the above done to it, but with little or no change in fuel economy. I've been told that the additive Ethenol at the pumps causes the fuel to burn faster which could reduce the mpg. Max Quote Link to comment Share on other sites More sharing options...
gp90se Posted November 3, 2003 Report Share Posted November 3, 2003 alright, time for a tune up: 1) all 6 plugs, including the rears, wires, and u might wanna change the coilpacks for $20 at autozone. 2) Go to a GM dealership and buy a top end cleaner 3) Oil change with either high milage oil (if you need) or a semi-synthetic oil if you have no leaks 4) Pull off the EGR valve (buy a gasket if you break yours) and clean the plenum part with carb cleaner 5) change the air filter Might cost you $100 for everything, but chance are if your getting 13mpg and low performance, it will be worth it. -Jeff Quote Link to comment Share on other sites More sharing options...
sonyman87 Posted November 3, 2003 Report Share Posted November 3, 2003 have you cleaned your throtle body? EGR valve I've cleaned the tb and iac, but not the egr. Recently the plugs, wires, and fuel filter have been replace. The GP starts and runs much better with the above done to it, but with little or no change in fuel economy. I've been told that the additive Ethenol at the pumps causes the fuel to burn faster which could reduce the mpg. Max EGR is a P.I.A. but it has to be done. Peace Quote Link to comment Share on other sites More sharing options...
The Burning Rom Posted November 3, 2003 Report Share Posted November 3, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. I agree..and would like to add that there are very few benefits even if you have mods. That is UNLESS you have modified your ECM for the higher grade gasolines. The stock N/A W-body motors (ANY YEAR) are set-up to run regular 87 octane. Going with a higher grade does VERY little if anything for performance of economy, but it DOES hurt the wallet. Quote Link to comment Share on other sites More sharing options...
Bolt_Crank Posted November 3, 2003 Report Share Posted November 3, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. I agree..and would like to add that there are very few benefits even if you have mods. That is UNLESS you have modified your ECM for the higher grade gasolines. The stock N/A W-body motors (ANY YEAR) are set-up to run regular 87 octane. Going with a higher grade does VERY little if anything for performance of economy, but it DOES hurt the wallet. not true.... my Z runs almost like ass on 87, and I get like 10MPG, whereas I use 89 octane, and it runs great, and I get like 20MPG Quote Link to comment Share on other sites More sharing options...
The Burning Rom Posted November 3, 2003 Report Share Posted November 3, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. I agree..and would like to add that there are very few benefits even if you have mods. That is UNLESS you have modified your ECM for the higher grade gasolines. The stock N/A W-body motors (ANY YEAR) are set-up to run regular 87 octane. Going with a higher grade does VERY little if anything for performance of economy, but it DOES hurt the wallet. not true.... my Z runs almost like ass on 87, and I get like 10MPG, whereas I use 89 octane, and it runs great, and I get like 20MPG Well I guess your car is special then Quote Link to comment Share on other sites More sharing options...
Dannymik Posted November 3, 2003 Report Share Posted November 3, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. I agree..and would like to add that there are very few benefits even if you have mods. That is UNLESS you have modified your ECM for the higher grade gasolines. The stock N/A W-body motors (ANY YEAR) are set-up to run regular 87 octane. Going with a higher grade does VERY little if anything for performance of economy, but it DOES hurt the wallet. not true.... my Z runs almost like ass on 87, and I get like 10MPG, whereas I use 89 octane, and it runs great, and I get like 20MPG Well I guess your car is special then Quote Link to comment Share on other sites More sharing options...
Bolt_Crank Posted November 3, 2003 Report Share Posted November 3, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. I agree..and would like to add that there are very few benefits even if you have mods. That is UNLESS you have modified your ECM for the higher grade gasolines. The stock N/A W-body motors (ANY YEAR) are set-up to run regular 87 octane. Going with a higher grade does VERY little if anything for performance of economy, but it DOES hurt the wallet. not true.... my Z runs almost like ass on 87, and I get like 10MPG, whereas I use 89 octane, and it runs great, and I get like 20MPG Well I guess your car is special then lol, damn rights Quote Link to comment Share on other sites More sharing options...
GrandPrix34 Posted November 4, 2003 Report Share Posted November 4, 2003 There's really no use using 89 anyway. There are no performance benefits if your all stock. I agree..and would like to add that there are very few benefits even if you have mods. That is UNLESS you have modified your ECM for the higher grade gasolines. The stock N/A W-body motors (ANY YEAR) are set-up to run regular 87 octane. Going with a higher grade does VERY little if anything for performance of economy, but it DOES hurt the wallet. not true.... my Z runs almost like ass on 87, and I get like 10MPG, whereas I use 89 octane, and it runs great, and I get like 20MPG Well I guess your car is special then lol, damn rights yes sir! Quote Link to comment Share on other sites More sharing options...
boostnawd Posted November 4, 2003 Report Share Posted November 4, 2003 If you guys think the tornado does anything, I've got some ocean-front property in Arizona for sale. I'd do all of the above and replace the o2 sensor if you're getting such shitty mileage. Quote Link to comment Share on other sites More sharing options...
TeeJay3800 Posted November 4, 2003 Report Share Posted November 4, 2003 If you guys think the tornado does anything, I've got some ocean-front property in Arizona for sale. You're right, it won't do jack shit....as I explained earlier. Quote Link to comment Share on other sites More sharing options...
lilloon Posted December 4, 2003 Report Share Posted December 4, 2003 im reading all these reaplies and im not seeing any body say anyhting about an O2 sensor. if you didnt know, the O2 sensor tells the computer to change the air/fuel mixture. it may just be running rich. also, my buddy had a 94 lumina-3.1, and he had the same kinda problem, long story short, he replaced just about every sensor and nothing changed untill he changed the coolant temp sensor. i would try those to two things. Quote Link to comment Share on other sites More sharing options...
Dan94Z34 Posted December 6, 2003 Report Share Posted December 6, 2003 All those "gas saving devices", and magical engine treatments are just snake oil. Quote Link to comment Share on other sites More sharing options...
D M N Posted December 7, 2003 Report Share Posted December 7, 2003 All those "gas saving devices", and magical engine treatments are just snake oil. I dont get it?? Ok anyways a tune up is a start get your car inspected and see that it is the O2 censor before you spend money on something you dont need. Quote Link to comment Share on other sites More sharing options...
Dan94Z34 Posted December 9, 2003 Report Share Posted December 9, 2003 snake oil was sold back in the late 18th early 19th century, and was supposed to be a cure all. It didn't work kind of like the tornado, prolong, slick 50, z-max, etc. now days Quote Link to comment Share on other sites More sharing options...
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