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Old 12-06-2016, 09:04 AM   #1 (permalink)
oldtamiyaphile
Master EcoModder
 
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Join Date: May 2009
Location: Australia
Posts: 1,510

UFI - '12 Fiat 500 Twinair
Team Turbocharged!
90 day: 40.3 mpg (US)

Jeep - '05 Jeep Wrangler Renegade
90 day: 18.09 mpg (US)

R32 - '89 Nissan Skyline

STiG - '16 Renault Trafic 140dCi Energy
90 day: 30.12 mpg (US)

Prius - '05 Toyota Prius
Team Toyota
90 day: 50.25 mpg (US)

Premodded - '49 Ford Freighter
90 day: 13.48 mpg (US)

F-117 - '10 Proton Arena GLSi
Pickups
Mitsubishi
90 day: 37.82 mpg (US)

Ralica - '85 Toyota Celica ST
90 day: 25.23 mpg (US)

Sx4 - '07 Suzuki Sx4
90 day: 32.21 mpg (US)

F-117 (2) - '03 Citroen Xsara VTS
90 day: 30.06 mpg (US)
Thanks: 325
Thanked 452 Times in 319 Posts
STiG: The Greenest Vehicle on Ecomodder...

...by far.







After a 13 month wait, my new van is finally here. It's a fully loaded LWB Renault Trafic dCi140 (1.6 litre twin turbo diesel, 140hp, 340Nm). It directly replaces the VW T5 that I had, and I've also done away with the Kangoo+ trailer combo I was running while waiting for this to arrive (although that's kind of replaced by my vintage pick up). Yes, that's 1.6 litres rated to a GVM of 5 tons!

The engine has some interesting tech like variable flow oil and water pumps. The warm up time is certainly very short, up to temp in under 2km.

Factory stop start, works great. If you're in neutral the system responds when you just start to push on the clutch pedal - by the time the pedal reaches the bottom of it's stroke, the engine is already running. This makes in impossible to beat the S/S. With the car in gear, obviously it can't start until the clutch is fully disengaged, so it's not as quick, but still excellent.

For a company that heavily pushes the 'eco' angle, they sure did do a poor job of the push button start system. Push once for the ACC position, push with clutch or brake pressed engine starts, that's fine.

But, let's say you want to let the car cool down before driving away, well you can't because the ACC only turns on the radio, you can't so much as open a window without the engine running! Same goes for the vent fan. You can imagine how annoying this might be if there's a summer afternoon storm (or you decide to wash the car) and you have to start your engine just to close the windows fully. I might have the get some rain shields just so as to reduce that issue. At least I optioned manual sliding windows in the cargo doors, so there's some chance of keeping temperatures while parked low.

When I arrive, I like to switch of the engine immediately (of course) and the vents will continue to blow cold air for a minute or two while I get my things, put up the silver foil on the windscreen etc. Well I can't! The stop button kills everything dead, which is also bad for bacteria building up in the A/C system. So basically you're forced to idle the engine the minute you get in, and until the moment you're ready to get out. When stop start works, the A/C fan keeps running so at least that half of the issue is mostly solved.

It's a relatively minor thing, but it's a major annoyance.

The push button start also means an electronic steering lock, so you can't roll down a hill to start without (almost guaranteed) the steering locking up. The manual warns that sometimes you might have to wiggle the steering wheel for the unlock to work (like with a manual system), so roll starts are a no-no. There's no way to EOC, not that I'd do that much with a turbo diesel anyway, but still. UPDATE: I tried gingerly rolling down hill with the engine off from an ignition off start, and the steering DID unlock automatically, but that assumes the steering is straight ahead, if you've parked with some lock on, it's not going to work.

The old key start would be much better for pure hypermiling, but the trade offs are more or less worth it so I don't have to constantly dig around in my pocket for the key fob (it's a working van).

Economy for the first tank came in at 7.86 in mostly city use (I did a few highway miles in the interests of break in) - that's already No2 in the Diesel trucks category. That's 0.3 (lifetime) better than the VW it replaces, though it doesn't have the outright grunt that the 2.5 did, but it's still does 0-62mph in 10.8 seconds which is more than adequate, and it doesn't have that tyre spinning lag that the VW did ( you know, nothing, nothing, BOOST, wheelspin). The tiny twin turbo is much more pleasant to drive around town. So the first 1000km tank is already under it's belt, this current tank looks set to hit 1100.

Once the van's fully broken in, I expect 6's or better will be possible, with mods that could be lower still! Best commute to date was a 5.9.

Renault Australia are offsetting CO2 emissions for all green coloured vans sold up to 210,000km. So Stig is zero carbon too.

The stock CD is quoted as a disappointing 0.352, with European Opel Ecoflex models scoring 0.34 - I've been unable to determine what the differences are, they look identical outwardly, so I assume the Ecoflex must have some undertray panels, which of course I will look to acquire and retrofit or just make my own. I've spotted one or two anchor points on the underside.

Rear box cavityish:



Size comparison to Prius:



Mods so far:
LED Stop/ Tail and interior lights (DRL's on back order at VLEDS)
Tow bar
Powder coated wheels black

Phone holder is too small for my phone with it's Lifeproof case, but I don't really want it there anyway, so it makes for a handy SGII mount. I'll buy a spare mount and cut it down in time for a better fit:


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Last edited by oldtamiyaphile; 12-07-2016 at 07:25 AM..
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