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Old 02-15-2013, 08:25 PM   #6 (permalink)
320touring
Master EcoModder
 
Join Date: Jun 2010
Location: scotland
Posts: 1,401

The Mistress - '88 Bmw 320i Touring SE
Team m8
Last 3: 27.17 mpg (US)

Babette - '01 Renault Clio 172 Exclusive
90 day: 31.17 mpg (US)

Derv Olop - '96 VW Polo CL
90 day: 38.61 mpg (US)

The Miserly Missile - '01 Skoda Octavia Tdi Ambiente
Team m8
90 day: 48.67 mpg (US)

Puggit - '97 Peugeot 306 Dturbo
90 day: 42.8 mpg (US)

Alfalfa - '02 Alfa Romeo 156 1.8 T Spark
90 day: 27.31 mpg (US)

316 - '87 BMW 316
90 day: 31.02 mpg (US)

Vectra - '01 Vauxhall Vectra SRi
90 day: 32.14 mpg (US)

Germany Beadle - '91 Mercedes 300td (estate, N/A)
90 day: 24.63 mpg (US)

Howdi Hay two - '01 Audi A2
90 day: 49.96 mpg (US)
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Quote:
Originally Posted by ausias View Post
change your thermostat. Standard one begins to open 87C and gets full opened at 102C, equilibrium temp on 1.9 Tdi is arund 90.9C. (Tested from 0C to 45C)
Autodata software (maintenance database) says something about 80C thermstat in some TDI but I thing it's not true and maybe a mistake, because original parts for engines from 1997 (I/ve seen) to nowadays use 87C ones.

Your car is wasting fuel because of your thermostat opens at lower temps and maybe never closes at all.

If you were able to measure the fuel saving with upper grill blocks you will appreciate the big improvement of your thermostat change.
Thanks for that..

My car is not a TDi though, its TD, the AAZ engine- I'm not sure what the thermostat is for that engine?
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