$25 each for spark plugs??? I would have to see data from more than one 300 mile round trip before committing to something like that. What is your long term average fuel economy since you have been keeping track? Over how many miles was that? Keep measuring your fuel economy on that car and report back when you have accumulated a statistically significant number of fill-ups. I am a skeptic, and will file this along with Split-Fire and other snake-oil spark plug configurations until I see hard data for substantially more than a single tank of gas. I would also be interested in data on carbureted engines, where fuel metering isn't nearly as precise as it is on fuel injected engines. One thing to be concerned with in this kind of testing is observer bias. Because you just dropped $100 on plugs, you may have changed your driving style slightly without even knowing it. An interesting experiment would be to take two identically prepped cars and send two drivers out over the same course for 10 tanks of gas. Pull both into the garage and change plugs; one with standard plugs and the other with these Pulstar plugs. Tell both drivers (a) nothing, or (b) that they both got the new type of plug. Send them out for another ten tanks worth of driving. Note any differences in fuel economy. --Glen At 07:16 AM 5/19/2008, you wrote: >Good morning everyone, > Just posting a review of the Pulstar Plugs ( > www.pulstarplugs.com ) for MPG increase. I > installed a set on Thursday in my 2000 Ford > Focus SOHC 2.0L. Typical mileage on the car is > 28-29 city and 31 highway. Best mileage ever > was 33.5 & 34.3 on two tanks about 2 years ago, but not seen that since. > > Two weekends ago, I drove from Oxford, MI to > Tawas City, MI, up I-75 and back. Netted 31.5 > MPG, which was the best MPGs I have seen for a long time. > > After installing the Pulstar plugs, I went > back up to Tawas City, MI this past > weekend. Netted 35.5 MPG, an increase of 4 > MPGs, a 12.7% improvement! I could literally watch the gas gauge move slower. > > > I will be running a tank of gas for > city-driving this week and will post back the results for that. > > For those interested in checking out the > plugs, the main website is www.pulstarplugs.com > ? FYI, the plugs are at a set price of $24.95 > each EVERYWHERE, including Ebay. The cheapest > place to buy them is at www.tunertools.com as > they have CHEAP priority mail shipping, which > saves about $6-$8 over buying direct from > Pulstar or on Ebay (inflated shipping costs to cover eBay fees). > > >Sincerely, >Greg Taylor :) <>< > >And the testimony is this, that God has given us >eternal life, and this life is in His Son. He >who has the Son has the life; he who does not >have the Son of God does not have the life. - 1 John 5:11-12 > >-------------- next part -------------- >An HTML attachment was scrubbed... >URL: >http://splatter.wps.com/pipermail/amc-list/attachments/20080519/c2793129/attachment.htm > >_______________________________________________ >Amc-list mailing list >Amc-list@xxxxxxxxxxxx >http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list