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Old 02-10-2013, 04:26 AM   #1 (permalink)
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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
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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)

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Mk3 golf Upper grill block for under 3($5)

I've finally turned my hand to some proper ecomodding!

The 1996 golf TD I have has a tendency to drop engine temp to just about 80 degrees when I'm on the motorway at 60mph. This wasnt great- I'd prefer it to be running 85ish, 90 under heavy load (hills etc).. so I decided to sort it!

managed to make a grillblock for the car today- certainly helps with keeping the temp more constant! Sits at 85 all day long, up to 90 for hills-happy!

Also easy to remove if the temp rises

Here's some pics to show how I did it for under 3.00:

0.79 worth of Pipe lagging and some scissors:




The bare grill (badge was already missing!)


Detail of the slats- where I'm going to slot in the pipe lagging


First piece cut and trial fitted



2nd/3rd/4th/5th pieces fitted






1.00 can of primer


1.00 can of Black Paint


The finished article

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http://fuguttycars.wordpress.com/

US MPG for my Merc s124 300TD


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Old 02-10-2013, 10:45 AM   #2 (permalink)
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Join Date: Jan 2008
Location: SF Bay Area
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Silver Bullet - '02 VW Golf TDi
Thanks: 5
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Very clever! I wonder if it will impact fuel economy?
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Best tank ever: 72.1 mpg in February 2005, Seattle to S.F.
New personnal best 'all-city' tank June '08 ... 61.9 mpg!
Thanks to 'pulse-n-glide' technique.
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Old 02-11-2013, 04:56 AM   #3 (permalink)
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)
Thanks: 88
Thanked 83 Times in 70 Posts
Quote:
Originally Posted by Stan View Post
Very clever! I wonder if it will impact fuel economy?
The imact on Fuel consumption will tell whether its clever or not

I just thought was an opportunity to use some spare stuff!


Initial experience (100 miles) suggests that the car is


1. Running more consistently at temps above 80 degrees (A warmer diesel engine is more efficient, within reason) with much less fluctuation.

2. The higher temp, combined with an increase in % of Veg oil in the fuel seems to have had a positive impact on drivability at higher speed.


so far, so good
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My Blog on cars- Fu'Gutty Cars
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US MPG for my Merc s124 300TD


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Old 02-11-2013, 09:40 AM   #4 (permalink)
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Silver Bullet - '02 VW Golf TDi
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Improving your fuel economy would be the icing on the cake, but the cleverness comes from solving the overcooling issue with inexpensive materials at hand.

Be sure to let us know if it impacts economy as well.
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Best tank ever: 72.1 mpg in February 2005, Seattle to S.F.
New personnal best 'all-city' tank June '08 ... 61.9 mpg!
Thanks to 'pulse-n-glide' technique.
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Old 02-15-2013, 06:39 PM   #5 (permalink)
Burning oil to move air.
 
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ausiasmobil - '06 Seat Leon 1.9 TDI Reference
90 day: 40.22 mpg (US)

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90 day: 52.85 mpg (US)
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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.
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Old 02-15-2013, 08:25 PM   #6 (permalink)
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)
Thanks: 88
Thanked 83 Times in 70 Posts
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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http://fuguttycars.wordpress.com/

US MPG for my Merc s124 300TD


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Old 02-16-2013, 04:55 AM   #7 (permalink)
Burning oil to move air.
 
Join Date: Aug 2011
Location: Valencia (Europe)
Posts: 126

ausiasmobil - '06 Seat Leon 1.9 TDI Reference
90 day: 40.22 mpg (US)

EcoTxec - '99 Skoda Octavia 1.9 TDI 110 cv Laurin & Klement
90 day: 52.85 mpg (US)
Thanks: 92
Thanked 37 Times in 25 Posts
Termostato, refrigerante para VOLKSWAGEN Golf III 1.9 TD 75cv a bajo precio (spanish or french)

Yours is a 87C, and your thermostat needs replacement because is not closing.

VW dsahboard coolant temp indicatro says 90C if real temp from coolant temp sensor says 70 to 102C, so if yours says 80 fuel sensor is getting maybe 65C.
MAybe you need also a replacement for the coolant temps sensor Sensor temp. refrigerante para VOLKSWAGEN Golf III 1.9 TD 75cv a bajo precio

Ask your repair shop to change thermostat and coolant sensor and put VW G12 coolant (G12+ it is a good option). IT's organic, not water with chemical that reacts when you mix different cheap coolants.
I'm using a 12€ per 5L like this:
IADA Productos
Technical data:
http://www.iada.es/pdf/producto/ft_glycogel_50.pdf
Safety data:
http://www.iada.es/pdf/producto/fds_...o_amarillo.pdf
It should be liquid from -37C to 145C.
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Old 02-16-2013, 08:03 AM   #8 (permalink)
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)
Thanks: 88
Thanked 83 Times in 70 Posts
Quote:
Originally Posted by ausias View Post
Termostato, refrigerante para VOLKSWAGEN Golf III 1.9 TD 75cv a bajo precio (spanish or french)

Yours is a 87C, and your thermostat needs replacement because is not closing.

VW dsahboard coolant temp indicatro says 90C if real temp from coolant temp sensor says 70 to 102C, so if yours says 80 fuel sensor is getting maybe 65C.
MAybe you need also a replacement for the coolant temps sensor Sensor temp. refrigerante para VOLKSWAGEN Golf III 1.9 TD 75cv a bajo precio

Ask your repair shop to change thermostat and coolant sensor and put VW G12 coolant (G12+ it is a good option). IT's organic, not water with chemical that reacts when you mix different cheap coolants.
I'm using a 12 per 5L like this:
IADA Productos
Technical data:
http://www.iada.es/pdf/producto/ft_glycogel_50.pdf
Safety data:
http://www.iada.es/pdf/producto/fds_...o_amarillo.pdf
It should be liquid from -37C to 145C.

Excellent- many thanks! I shall investigate the thermostat, and getting it replaced. Certainly does sound like its running cold.

A new thermostat appears to be under 10, so not a massive investment. Coolant is simple enough to get too.

__________________
My Blog on cars- Fu'Gutty Cars
http://fuguttycars.wordpress.com/

US MPG for my Merc s124 300TD


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Old 02-20-2013, 08:43 AM   #9 (permalink)
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)
Thanks: 88
Thanked 83 Times in 70 Posts
First tank is in with the grill block on. Car was running a 20/80% veg/Diesel mix

670.1 miles for 52.58L of fuel

Giving imp MPG of 57.94


thats a 0.37 mpg gain, and I'm happy, bearing in mind the traffic I've had to deal with this week
__________________
My Blog on cars- Fu'Gutty Cars
http://fuguttycars.wordpress.com/

US MPG for my Merc s124 300TD


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Old 03-01-2013, 07:24 PM   #10 (permalink)
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)
Thanks: 88
Thanked 83 Times in 70 Posts
Thermostat now purchased- hopefully get it fitted this weekend, and see how the temp is then.

I'm hoping for a rock steady 90 degrees indicated, with the engine getting there quicker

__________________
My Blog on cars- Fu'Gutty Cars
http://fuguttycars.wordpress.com/

US MPG for my Merc s124 300TD


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