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  1. He's right about the 2CV
  2. Looking to track down a van that can get 30 mpg
  3. Replace the Prius: Corolla or Civic
  4. Fuel Efficient Vehicle with 3rd Row
  5. Interesting old article on the 1992 Civic VX
  6. Propane Fumigation on gas EFI cars
  7. Oil level resistance
  8. Throttle body diameter and air cleaner piping
  9. I bought a TDI!
  10. Exhaust direction (to fill in turbulence)
  11. 2021 Toyota Tacoma (3rd gen Tacoma) aka the money maker build
  12. Espace 3
  13. Tire performance vs economy?
  14. Filling up question
  15. 2003 ram
  16. Should I Buy This 1996 Geo Metro?
  17. Toyota Aygo Wideband O2 sensor retrofit & piggyback or OBD2
  18. California to start checking OBDII cars for tunes
  19. Climate control mods (that might be terrible).
  20. Modding a GMC Sierra 2500
  21. Idea for RV boat tail
  22. Would you guys repair a broken air-conditioning?
  23. Need to sell my 86 CRX HF
  24. David Vizard high mileage Mini project info/results
  25. Electric AC compressor?
  26. The Minnibago
  27. Highway Cruising
  28. Good Deal?
  29. 3rd time lucky! Bought yet ANOTHER cheap, 3-cyl Mirage eco-appliance!
  30. Aero-mods: 17 Kawasaki Versys X 300
  31. 2008 Kia Rio Moon hubcaps
  32. Saw a "Solar" EV on AliBaba - est. solar range?
  33. Thomas Rocket Car
  34. Economical tow vehicles
  35. Ecomodding my $800 Honda Fit 5-speed beater [was "Picking up my..."]
  36. Woodgas meetup 2021
  37. Mainstream Youtube Honda Insight Hypermiling
  38. What a mess ! ( Recycling EV batteries )
  39. Robert Q. Riley will be remembered.
  40. Anyone use CB radios in their cars?
  41. Post your art - PhotoChops / napkin doodles of cars and such here.
  42. Aerocivic - Restoration and further modding
  43. PHEV using Allison H 50 EP
  44. water/methanol injection's untapped FE potential
  45. Lean burn engine (E85?)
  46. Diesel high efficiency intercooler upgrade
  47. MPV12/HP Tuners for my GM V8 Van?
  48. What good and bad can you tell me about biodiesel ?
  49. Tire model, size and pressure
  50. EcoBoat? Ocean going diesel.
  51. Tire size vs MPG - EPA test results
  52. Bassjuicing a Volt in Photoshop
  53. Help mateing a US Gear Overdrive
  54. Extremely thirsty supermodel - eco attempt!
  55. leSharo RV
  56. New Buick Encore GX
  57. Prius ICE starts after only a few seconds - Gets only 41 MPG
  58. GM's newest pickup costs $9,000
  59. What tires do you have & how would you rate their RR, treadwear & traction?
  60. Dual over drives
  61. Tire Pressure Again
  62. Practicality of Mazda 3 BM active grille shutter retrofit (OEM)
  63. A-B-C-A tested spare tire aero mod to 2nd gen Highlander Hybrid
  64. tire size fuel efficency 165/60/r14 , 165/80/r14, 155/80r14
  65. 1G Insight - Eco Kswap
  66. LRR vs. Weight
  67. Mahle printed pistons for fuel mileage?
  68. Ozone injection
  69. Looking for eco friendly Hondata Kpro tuner
  70. Corolla diesel 1.8
  71. Tesla Model S breaks the 200 barrier, as well as getting close to breaking the .200 cD barrier
  72. Long term effects of pulse and glide in an automatic
  73. WMO/WVO/Used Trans/Hydraulic fluid to Black Diesel talk
  74. The glorious jiggly bags of joy
  75. $350 Metro?
  76. Lithium Titanate Battery
  77. Rake Back to save MPG
  78. Continuous EGR
  79. New Prius!
  80. HOW to add and control EGR to a Chevy SB
  81. Forester 6MT - Throw some ideas at me!
  82. A very real possibly answer to what we all want!!!
  83. 2013 Nissan Frontier Crew Cab Ecomod Ideas Needed
  84. Engine management mods
  85. Next Vehicle?
  86. Auris Hybrid Tips and Tricks
  87. Insight with VW diesel swap for sale
  88. Big Diesel, MPG increase ideas?
  89. Accessory Drive Losses
  90. What are the signs of oil viscosity breakdown ?
  91. Eco modding the Jeep TJ to 5.5l/100 (42MPG)
  92. Lotus Elite Type 14 Replica?
  93. How about inviting some guests to the forum
  94. 2019 Mitsubishi Mirage G4 5-speed
  95. Flat tire repair vs weigth savings techiques
  96. Mercedes E220 1994
  97. Tire alignment
  98. Audi A2 1.4 petrol/LPG Gas
  99. Need advice on GoPro / GoPro alternative and suction cup mount for tuft testing
  100. Large Family Hauler Ideas? 35+ MPG Wanted
  101. Civic D15Z1 problems
  102. A much more efficient alternator
  103. My first XFi
  104. 59 Rambler engine
  105. Reason for old car pictures
  106. Thoughts on 1984 Ford Ranger 2.2 Diesel?
  107. Rear view problems
  108. Driving further
  109. Peugeot 108 more fuel efficient?
  110. Engine off instead of idling?
  111. caravan transfer gears
  112. Pictures of my projects ('67 Sunbeam, ecomodified '65 Mustang, hot rods)
  113. Engine flush one last time? Or no?
  114. 212cc engine swap gives a new life to an old Honda Insight.
  115. The best carb if not using FI.
  116. Common sense and MPG
  117. Article on oil cleanness and fuel use
  118. Michelin Crossclimate+
  119. Ford Ranger Hot T-Stat
  120. Spring rate, wheel well size, and lowering springs
  121. Oil alert
  122. Shonky Saab 9-5 2.0t Manual
  123. List of wheel weights
  124. When to buy tires
  125. New rims/ light weight or aero?
  126. 320touring - back in a bargain Citroen Berlingo
  127. VW E-up, Mii electric, Citigo E mods for efficiency
  128. Swap gears or swap engines?
  129. Flat tire kit instead of spare
  130. Thoughts/Opinions on best potential eco car <$2K
  131. Cheap full synthetic oil at Costco
  132. Chevy prizm/ Corolla for mpg monster?
  133. /// best tires smaller lrr tires or larger regular tires ? ///
  134. Throttle-limited testing methods (Constant Throttle)
  135. How's this for some tall gearing?
  136. Wheel thickness: 14x4.5 or 13x5?
  137. Come back, Frank Lee!
  138. Rear end swap revisited
  139. 1993 Mercedes w124 diesel modifications
  140. Curtis controller model 1208-2455
  141. Bellypan/Undertray as rust preventative?
  142. Changing to a different tire size
  143. Awesome results with a 2018 Yaris IA ( 50.7mpg lifetime mpg )
  144. Restore Engine Restorer
  145. Jeep transfer case swap - preliminary fe data
  146. Oops, I did it again! Bought another cheap, 3-cylinder Mirage. Mods in progress...
  147. What should I do with a 2002 Prius?
  148. First gen Civic (1975) 1.5l 4spd CVCC
  149. Sealing gaps around radiator
  150. Best 5 x 114.3 Wheels
  151. OEM MPFI vs modern TBI conversions
  152. Eco off-road on a budget? Or destroying a Prius, you decide.
  153. Good dyno tests of modifications (video & screenshots)
  154. CVT swap? (Into 2005 Civic, replacing 4-spd auto)
  155. 87 Octane Ethanol Free or 90 Octane Ethanol Free??
  156. Areodynamic parts - which ones are worth having?
  157. Trying out 0w-16 oil for more MPG
  158. Completely unexpected MPG results
  159. Help troubleshooting converted car system :)
  160. The real cost of ownership. Tesla Model 3.
  161. What RPM range do YOU get the best mileage at?
  162. Math help......
  163. Aerodynamically optimized car hubcap
  164. Cummins Ford Econoline Van Project
  165. Downsizing rim diameter, what is the optimal tire size?
  166. Brake pad drag reduction clips (theoretical)
  167. Does anyone have a good source of semi-rigid, 4"-6" flexible material?
  168. 2007 Camry SE
  169. Nissan Leaf antenna removal questions--Involved with SatNav + SiriusXM, or JUST Sirius/AM/FM?
  170. Best LRR Tires
  171. grayOS mod thread
  172. Cruze ECO 6MT driving tips
  173. Passive prechamber spark plug (DIY??)
  174. Theoretical PZEV?? ?
  175. Tall Rear End Gears
  176. "I want to tinker with my Mercedes Sprinter to improve MPG."--friend
  177. Been gone a while...
  178. FREE! 2008 Toyota Prius Mint Green Turtle
  179. Mazda i-ELOOP, potential use in retrofits?
  180. Ben Fixes a Chevy Volt
  181. Tires 215R65 or 205R75, which has lower rolling resistance
  182. Project Toyota Yaris III 2012 Engine 1KR-FE
  183. How many MPG are you getting at 70 mph (GPS)
  184. Tire Valve Stem With Two Ends?
  185. Dodge Ram 2500 eco build
  186. Brake pad drag reduction clips (tested)
  187. 2001 Honda Civic EOC Kill Switch
  188. Using tuners on pickup trucks
  189. Ecoboost 1.0 3 Cylinder - 2015 Ford Focus
  190. Looking for expert turbocharger advice for Honda K20
  191. More efficient HVAC fan for cars?
  192. 225/50R17 -> 215/50R17?
  193. Camber/Caster alignment questions
  194. My 40 MPG Corvette is going well but I need help
  195. Battery Overview
  196. Build Thread, IC injection cam and rewound etc IMA H Insight2002
  197. Shifting with torque converter locked
  198. What will be the Ultimate North America Econobox of the future?
  199. What PSI do you run on your tires?
  200. A better alternator delete
  201. 40 MPG Corvette That Sacrifices NOTHING
  202. Friendly Wager: 60 mpg 95 Mercury Tracer
  203. Retaining heat use during EOC
  204. Battery Hookup - used Li batteries very affordable
  205. 2nd gen Prius CNG conversion
  206. New tires, let's see what happens
  207. 2003 Civic 4dr K20a3 turbo **Build Thread**
  208. ALERT! - Wisconsin Insight G1 Owners - Contest your $75 Hybrid Fee
  209. Question regarding changing tire size
  210. Low power fuel tank heater for better winter mileage?
  211. Help with gearing
  212. Fuel is Fuel.... An alternative view to economy
  213. Hyundai Genesis?
  214. 2019 Sentra rental. Ask away!
  215. Non resistor spark plugs
  216. My newest low budget mod......Signature display
  217. 2001 Subaru Outback
  218. Adding regenerative braking to the Mirage
  219. Pulled the trigger on some Cooper AT3 4S tires
  220. ABT rs4 aero wheel - thoughts?
  221. 6th gen Civic Question
  222. How much power will a Torque Converter Clutch hold?
  223. Wich tires for bmw e36?
  224. Reverse mud flaps
  225. Modding my 1979 Ford F150 - looking for some opinions
  226. New Tires = ~Same MPG as Worn Tires
  227. Koenigsegg free valve system
  228. Showcase for Wheel Discs
  229. Aero-Volt Project
  230. Some European Safety Lemons
  231. Ford FoCus & Ford Fiesta Dual Cluth Dry
  232. Prototype camo wrap: yea or nay?
  233. Warm air intake did not help
  234. Adding EGR for MPG
  235. Transmission running too cold?
  236. Better mileage with AC on?
  237. 15 Wheel /Rims Lightweight 5-100 Lug Unavailble
  238. My 2nd Honda Insight
  239. Which one of you guys made this?
  240. New daily...mpg is depressing (2006 3.3L V6 Toyota Highlander limited AWD)
  241. Good vehicle for a touring band?
  242. Needing some insight on OBD-2
  243. Tire pressures and driving conditions
  244. Wheels: Smaller rims, taller sidewalls?
  245. Tow Rig/Daily Driver/Weekend Toy thoughts?
  246. 40.6 mpg in a full size Chevy pickup
  247. MPG by BRAND TEST 2008 Tahoe 6.0L v8.. (REAL World tests)
  248. 30 mpg in the Rav4!
  249. Install a transfer case backwards?
  250. Two faced insight build underway. K series gearing? discuss