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Old 06-30-2011, 12:48 PM   #3 (permalink)
menaus2
EcoModding Lurker
 
Join Date: Aug 2010
Location: Wisconsin
Posts: 45

Slowpoke - '00 Hyundai Sonata GLS
90 day: 32.82 mpg (US)
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Quote:
Originally Posted by Nevyn View Post
Hyundai transmissions aren't the greatest at economy. I've got an auto Hyundai myself. DO NOT. I repeat that, DO NOT! ever engine-off coast. Best you can hope for is neutral, engine-on coasting. Unless, of course, you want to guinea pig EOC in a Hyundai and find out what happens. It'll shred the clutch packs.

V6, eh? That'll be a tough beast to break. Coast a lot. Flush/fill the transmission with fresh fluid. New plugs/wires. Coast. My 4-banger Hyundai does NOT like warm-air intake; not sure about the 6's. LOTS of coasting. Upper grille block should be no problem. Check the MAP/MAF sensor (not sure which you have). Did I mention coast a lot?

Rear window aero on my car is HORRIBLE. Kammback/roof spoiler would be a HUGE help.

Best of luck to you!
oh whoa thanks for the heads up Nevyn! I usually try and pulse and glide with engine on neutral on the rolling hills where I live. Aero is a huge problem though as coasting time frankly sucks. As far as engine off, would the clutch be spared if you popped it into neutral before turning it off, restarting it in neutral, then reengaging after that?

I'm still hovering around 28mpg as other family members use the car often and a lot of city driving just slays the numbers .

As far as mod updates, the new radio probably shaved a good 5 lbs off the curbweight. I'm in the middle of making the cardboard template for my underbelly and have 2 sheets of coroplast chilling in the garage . Deleted the radio and moved it inside behind the rear seats... not horribly cosmetic but works for the time being.

Still have to see how my Significant Other would handle a kamback or other more visable mods ...
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Slowly modding my 2000 sonata to what it should be... one project at a time.
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