octane VOLKSWAGEN TRANSPORTER 1990 T4 / 4.G Owners Manual

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VEHICLE CARE
FUEL SUPPLY
Your vehicle is equipped with a catalytic converter and requires unleaded fuel.
For maximum engine performance, un­
leaded fuel with an octaine rating of 91
RON,
which corresponds to an anti-knock
index (AKI) of 87, is recommended.
Do not use leaded gasolines.
Deposits from leaded gasolines deacti­
vate the catalytic converter and thus
defeat its purpose to control exhaust emis­

sions.

Unleaded fuels may not be available
outside the continental USA and Cana­

da.
Therefore, we recommend you do not take your vehicle to areas or coun­
tries where unleaded fuel may not be
available. Octane rating
Octane rating indicates a gasoline's ability to
resist detonation. Therefore, buying the cor­
rect octane gas is important to prevent en­
gine "knock", which reduces performance and may cause engine damage.
Under high load operating conditions, un­
leaded premium gasoline may be used.
The 91 RON octane rating which you will find above the filler neck is based on the re­ search method. The AKI octane rating unsu-
ally displayed on USA gasoline pumps is
calculated as follows: Research octane number plus motor octane number, divided
by 2.
Regular fuels have an octane rating ranging
from 91 to 95 RON (Research Octane Number) or 87 to
91
AKI.
Do not use any fuel with octane ratings
lower than 91 RON or 87 AKI.
Gasolines containing alcohol
Gasoline containing alcohol is available at
gas stations in some areas. The gas pump may not be labeled to identify that alcohol
is present in the gasoline. If it is labeled, it
may not identify what amount and type(s)
of alcohol are used. We recommend you
use quality gasoline that is NOT blended
with alcohol. The use of fuel containing alcohol can cause loss of fuel econorr
and driveability and performance pre:

lems.
If these problems are experience:
we recommend you switch to anothe brand of gasoline.
Seasonally adjusted gasoline
Many gasolines are blended to perfor-
especially well for winter or summer drl
ing.
During seasonal change-over, wl
suggest that you fill up at busy gas statior I
where the seasonal adjustment is mo-r likely to be made in time.
Gasoline additives
A major concern among many aut: manufacturers is carbon deposit build-i:
caused by the type of gasoline you use.
Although gasolines differ from onr manufacturer to another, there is a cor-
mon thread. All gasolines contain props'
ties that can cause deposits to collect ad essential engine components, specificali
fuel injectors and intake valves. Althoug- most gasoline brands include additives tc
keep engine and fuel systems clean, the;,
are not equally effective.


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[VEHICLE
CARE

DIFFICULT
OPERATING
CONDITIONS

Driving
under
difficult
conditions

The
vehicle construction and equipment is
designed
for normal operating conditions.

This
also applies to the frequency and the extent of service requirements as stated in
the Maintenance brochure.
If you are planning to drive your vehicle
under
difficult
operating conditions (for

example,
continuous trailer towing, very hot or cold weather, very dusty conditions,
poor fuel quality etc.) you may
want
to
make
special preparations such as chang­
ing to appropriate oil viscosity, having your

car
thoroughly inspected. Furthermore,
the maintenance should be matched to
the operating conditions (see page 95).
Operating
your
vehicle
outside
the

USA
or
Canada

Government
regulations in the United

States
and
Canada
require
that
automo­

biles
meet specific emission regulations

and
safety standards. Therefore, vehicles

built
for the USA and
Canada
differ
from

vehicles
sold in other countries.
If you plan to take your vehicle outside the
continental limits of the United States or
Canada,
there is the possibility
that

• unleaded fuels for vehicles
with
cataly­
tic converter may not be available;
• fuel may have a considerably lower
octane rating. Improper fuel may cause
engine damage;
• service may be inadequate due to lack
of proper service facilities, tools or testing
equipment;
• replacement parts may not be readily

available.

Volkswagen
cannot be responsible for
mechanical
damage
that
could result

because
of inadequate fuel, service or
parts availability.
Certain
Volkswagen models are available
for delivery in Europe under our
tourist
delivery and
return
shipment program.

For
details consult your Volkswagen

dealer
or
write
to:

USA
Volkswagen United States, Inc. Tourist Delivery
P.O.
Box 3951
Troy, MJ 48007-3951

Canada
Volkswagen
Canada,
Inc. Tourist Delivery 1940 Eglinton Avenue
East

Scarborough,
Ontario
M1L2M2

If you bought your vehicle abroad an:

want
to bring it back home, be sure M inquire about shipping and forwardin:
requirements, as well as current impc

and
customs regulations
first.

Make
sure the vehicle meets Unite:

States
emission regulations and safe:

standards.
Otherwise it may prove tc:

costly
or even impossible to add the eqi : ment necessary to bring the vehicle in::

compliance
with
these regulations a-:

standards.

Canadian
regulations require
that
any c= not complying to standards has to

shipped
back to the car's country of oric -
at the owner's expense.


www.westfaliaT3.info - a useful website for owners and enthusiasts of VW Westfalia T25 / T3 Campervans

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TECHNICAL DATA

ENGINE
DATA/SPARK PLUGS
Engine Maximum
output
SAE net 90 hp at 4800 rpm
Maximum torque SAE net 117,3 ft lb at 3200 rpm

No.
of cylinders 4
Displacement 129 CID (2109 cm3)
Stroke 2.99 in (76 mm)

Bore
3.70 in (94 mm)

Compression
ratio
Fuelf)
9.0:1

Compression
ratio

Fuelf)
Regular
unleaded

Sparkplugs
Bosch
W7CC0

Beru
14L-7CU/14L-7C

Champion
N288

1) Minimum octane rating and
further
details see page 86.

Notes

Spark
plugs are replaced during the Volks­
wagen scheduled Maintenance service. If
you replace the spark plugs between the

Volkswagen
Maintenance services, the
following should be noted: • Engine, spark plugs and the ignition
system are matched. To avoid faulty opera­

tion
or engine damage, use only Original

Volkswagen
spark plugs. It is especially important to note the number of electrodes
and heat value. • Since spark plug specifications may

change
for technical reasons during a cur­
rent
model year, we recommend
that
you
obtain your spark plugs from a Volks­
wagen dealer who has the latest informa­
tion.
146


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ALPHABETICAL INDEX
page
Introduction 2
Instrument illumination 46
Instrument panel 4 Instruments 40
Interior light 63,133
Jack and tools 123 Jack points 126
Keys 7
Kickdown 37
Lane changer 48
License plate lights 133 Lifting vehicle 140
Light switch 46 Light alloy wheels 92
Lights 46,130
Locks 7
Lubricants 98
Luggage compartment 28
Maintenance 95
Maintenance booklet 2
Manual Transmission 32 Manual Transmission Oil 102
Mirrors 13
Notes to owner 2 page
Octane rating 86
Oil change 100
Oil filter changing 101 Oil pressure warning light 43
OXS (Oxygen sensor) 144
Parking 31,145
Parking brake 31 Pedals 29
Power steering 103
Power windows 12
Radio 5, 135
Rear lid 11 Rear seat bench/bed combination 26
Rear view mirrors 13
Rear window defogger 47
Rear window wiper/washer 50
Refill Tank 105
Reverse 32
Roof rack 68
Safe driving hints 70
Safety belts 14
Safety belts warning light 18
Safety compliance sticker 151
Seats 20 Secondary heat exchanger 53
Selector lever 35 page
Service manuals 152 Side marker lights 132
Sliding door 10 Sliding roof 62
Sliding windows 12
Snow chains 119 Spare wheel 124
Spark plugs 146
Speedometer 40
Speed ranges 69
Starter switch 38 Starting procedures 39
Steering lock 38
Stopping engine 39
Sunroof 62 Sun visors 67
Switches 46
Swivel seats 22 Syncro Differential lock 33
Driving with the-all-wheel-drive . . 75
Snow chains 119
Technical Information 142 Towing 139
Tachometer 41
Tail lights 132
Technical data 146


www.westfaliaT3.info - a useful website for owners and enthusiasts of VW Westfalia T25 / T3 Campervans