1990 VOLKSWAGEN TRANSPORTER fuel additives

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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

Injector
| |
Fuel
Injector
Good
Spray Pattern

Intake
Valve

-fter
an extended period of using inade- :uate fuels,
built-up
carbon deposits can

Bb
your engine of peak performance. And :arbon deposits like those in the illustra-
ron can lead to other engine performance
Droblems
such as:
• unstable idling
• surging
• misfiring
• power loss
• engine run-on
• engine pinging or knocking
if these problems continue over a long
oeriod of time, engine damage can be a re­
sult.
Intake
Valve

Free
from
Deposits

Damage
or malfunction due to poor fuel
quality is not covered by the Volkswagen
New
Vehicle Limited Warranty.

Recent
fuel developments

Over
the past few years, more manufactu­ rers have been advertising detergent addi­
tives in their gasoline. These additives are primarily intended to keep fuel injectors

clean.

However,
they are not all equally effective
in reducing carbon deposit build-up on
intake valves. We are aware
that,
as of the

time
of printing, some manufacturers advertise and sell gasoline
that
contains
the proper deposit control additives
that

will
keep intake valves and injectors
clean.

To
assure the long
term
performance of your car's engine, you should use gasoline brands
that
include these deposit control

additives.

If gasolines
with
additives are not
avail­

able,
contact your Volkswagen dealer
about proper fuel additives.


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[
VEHICLE
CARE

LUBRICANTS I
Climate Tropical
40'
30-
20- 10-
0-

10'

20

30'
Single grade oil
Multi grade oil
Gasoline Engines
|B25-565/21

Engine
Your engine was factory filled with an all- season high quality engine oil. If you need
to add oil between oil changes use any high quality petroleum or synthetic based
oil with correct specifications.
The following term must appear on the oil container singly or in combination with
other designations: "API Service SF or
SG".

Engine oils are graded according to their
viscosity. The proper grade to be used in your engine depends on existing climatic
or seasonal conditions. Refer to the temperature chart when
selecting engine oil. As temperature ranges of the different oil grades overlap,
brief variations in outside temperatures
are no cause for alarm. It is also permissi­ ble to mix oil of different viscosities if you
find it necessary to add oil.
When using SAE 10 W or SAE 5 W-20 or SAE 5 W-30 engine oil, avoid high speed
long distance driving if outside tempera­
ture rises above the indicated limits.
Engine Oil Identification Symbol
Select an oil for your vehicle which
con­

forms to the standards of the American Pe­
troleum Institute (API). A symbol has been added to the top of some oil containers to help in selecting the correct oil.
-l -l
/ / SAE '. j -2
t—i iow-3o jji -3

1B25-
532
98 (1) The top portion indicates the oil quality
by API designations.
(2) The center portion shows the SAE oil
viscosity grade.
(3) The lower portion indicates that the oil
has fuel saving capabilities. Transmission
Manual transmission: Hypoid oil SAE 80 (Mil-L-2105 or

API/GL4).

Automatic transmission:
ATF Dexron® or Dexron II® for torque cor
verter and hypoid oil SAE 90 (Mil-L-2105
E

orAPI/GL5) for final drive.
Front axle differential (Syncro only)
Hypoid oil SAE 80 (Mil-L 2105 B M
API/GL 4) or synthetic transmission oi
G50,
SAE75W-90.
The lubricant used does not have to be
changed.

Should the need arise to add oil, it shoulc
only be done with the necessary workshop equipment.
Power steering
ATF Dexron®
Lubricant additives
Volkswagen does not recommend the use of oil additives. It may adversely af­
fect your warranty.


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ALPHABETICAL
INDEX

page

Accessories
122

Air
cleaner 103

Air
Conditioner 54 All-wheel-drive 75
Alternator warning
light
44

Ashtrays
64
Assist
handles and coat hooks ... 67
Automatic safety belts 14
Automatic Transmission 35
Automatic Transmission Fluid .... 102 Auxiliary Heater 57, 60
Battery 109
Battery charging 110

Brake
fluid reservoir 108

Brake
warning
light
43
Brakes
29

Break-in
period 69

Bulb
chart 130

Bulb
replacing 130
Buzzer
7,35

Capacities
147

Catalytic
converter 144

Central
locking system 8
Cigarette lighter 63
Child
safety 15

Chime
7,35

Cleaning
products 89

Climate
controls 51
Clock
41 page

Coolant
temperature gauge .... 41

Cooling
system 104

Consumer
information 152
Corrosion
protection 94

Cruise
control 49

Curtains
27

Cup
holder 66

Dashboard
4

Data
146
Defogging/defrosting 52 Differential lock 33

Dimensions
148
Do-it-yourself service 123

Doors
9

Economically
driving 72

Electric
windows 12

Emergency
equipment 70
Emergency
flasher 46

Emergency
starting 136

Emergency
towing 138

Emission
Control System 144
Engine
code letter 151

Engine
compartment lid 97

Engine
cooling 41,104
Engine
exhaust 144

Engine
number 151

Engine
oil changing 100
pace

Engine
oil checking 9?

Engine
oil grades 9E

Expansion
tank 105

Fan
41, 10c

Folding
table 65

Foreign
country driving 120 Front seats 20

Fuel
economy 72

Fuel
gauge 42
Fuel
injection 142

Fuel
supply 86

Fuel
tank 85

Fuses
12E

Gas
Station
Information
156

Gasoline
additives 86
Gearshift lever 32

Glove
compartment 64
Headlight dimmer and flasher .... 48 Headlights 13C
Headlight adjustment 134
Headlight switch 46

Head
restraints 19 HeatingA/entilation 51
High beam 45,48
Horn 4
Identification label and number ... 151
Ignition/steering lock 38
Indicator lights 43


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