I've got a year 2000 VW Passat 1.9 TDi (115bhp) 5 speed manual. The engine and car is very similar to my last one (a 1996 Audi A4 1.9TDi 110bhp), but the VW has a trip computer which includes instantaneous, journey and trip MPG. Daily commute is 27 miles each way, comprising 3 urban miles, followed by 19 motorway miles, then finally five urban miles. I usually average between 52 and 55 mpg per tank (imperial), although my current tank mileage figures are 59MPG at 750 miles. Haven't had any major traffic jams on this tank, and also I've been doing longer trips over the holiday. Some times I mix in up to 25% vegetable oil with the diesel. Temperatures this winter are mostly between-2C and +10C. The official euro combined cycle figures for this car is 48MPG (imperial, of course). I find the main variable in MPG in my journeys is the journey length, as long as there are no long halts - at 5 miles (when the engine reaches normal temps) I'm only doing 45-48 mpg imperial (35mpg US). 10 miles = 50-53mpg, 20 miles = 52-56mpg, 50 miles = 60+mpg. I've read the hypermiling techniques, but to be honest I don't understand most of them Currently I just try to avoid braking by planning ahead, using the highest gear possible (for example, 1000rpm in 5th gear at 30mph when driving in a 30), following large vehicles (at about 1.5seconds) and don't push it too hard. The last is tricky because I'm very impatient I used to get 45MPG (35mpg US) in the Audi, probably because I used to cruise on the motorway at 95mph. It wasn't until I got the car with the trip computer that I could see how much difference it made to the MPG. I've installed low-rolling-resistance tyres on the back (Michelin Energy 3A. Front still have lots of tread). Any suggestions for the next step? I feel the biggest problem at the moment is during the five miles it takes the engine to warm up. Once I get to 5 miles I'm only at an average of 45mpg (35mpg us) or so. The rest of the journey's mpg is impacted by that initial section. I already do the following things: * DWB / smart braking - I've been (trying) to do this for years. * Drafting at about 1.5 seconds behind. The large vehicles here are limited to 56mpg. 1.5s seems enough time to be safe at that speed? Traffic side + surf aren't legal here because you're always supposed to be in the leftmost lane possible unless overtaking. I haven't tried any of the following things: * FAS =- (turning off engine and coasting?) - illegal here at most speeds. But if I'm in stop/go traffic on a steep downhill, sometimes I turn off the engine and let the car roll forwards as appropriate. Restarting a diesel engine costs more in fuel than a petrol engine (= 30 seconds idling). * Pulse and Glide. Not sure I understand this? Accelerate heavily, and then coast with engine turned off, repeat? Will this work for a diesel? * Warm up pulse and glide - if I understand this, it is start engine, join traffic, turn off engine and coast, restart engine, repeat until warm... won't this result in loads of cold starts? Would be quite tricky to do, junctions and traffic lights to navigate in the first quarter mile of my trip. (Sometimes the car will not restart for a few minutes if I stall the engine while it is still very cold. I guess this is because the glowplugs have cooled down but the engine management system thinks they are hot). * Potential parking - destination and start are on the flat. * Face-out - I do the opposite in winter to prevent frost getting on the windscreen. How much difference does it make in a trip? * Ridge riding - the white strip on the motorways here is a rumble strip intended to wake up sleeping drivers. But I try to avoid the groves in the road which the heavy vehicles cause (they can have a cm of rain in and make you aquaplane).