1981 CHEVROLET MONTE CARLO octane

Downloaded from www.Manualslib.com manuals search engine FUEL REQUIREMENTS
Your engine is designed to use only unleaded gasoline . Unleaded gasoline must be uSed for the emission control system to operate properly . Its use will
also reduce spark
plug fouling, exhaust .system corrosion and engine oil deterioration.
Using
leaded gaso~ne can damage the emission control system and could
result
in loss of warranty coverage. The effectiveness of the catalyst in the
catalytic converter decreases after use of as little as one tank of leaded
gasoline.
Also, your vehicle may have the "Computer Command Control" system, which includes an oxygen sensor. Leaded gasoline will damage the
sensor,
and attect emissioncont(ols. (For more information, see "Computer
Command Control
System" in "Service and Maintenance,"Section 5 of this manual. Federal regulations require that pumps delivering unleaded-gasoline
be labeled with the word UNLEADED. Only these pumps have nozzles whichftl the filler neck of your vehicle's gasoline tank.
In the United States, Federal law also requires that gasoline octane ratings be
posted on the pumps. The octane rating shown is an average of Research
octane (R) and Moto< octane (M). In most parts of the United States , you
should use unleaded gasoline with an octane rating of at least 87. However,
you may use unleaded gasoline with an Q!;tane rating as low as 85 in these
. high -altitude areas: Coloraclo , Montana, New Mexico , Utah , Wyoming,
northeastern Nevada, southern Idaho, western South Dakota, and that part of
Texas which is directly south of New Mexico .
Using unleaded gasoline with
an octane rating lower than stated above can
cause persistent, heavy
"spark knock." (" Spark knock" is a metallic rapping
noise.) " severe, this can
lead to engine darnage. " you detect heavy spark knock even ",hery using gasoline of the stated octane rating, 0<. if you hear steady spark knoo~ 'wfiil.)' Holding a' steady speed on level roads, have your
dealer correct the
problem . Failure to take steps to stop such knocking is
misuse
of the vehicle, for which Chevrolet is not responsible . However, now and then you may notice light spark knock for a short time while accelerating
or driving
up hills : This is no cause fo< concern, because you get the greatest
fuel economy
benem from the gasoline's octane rating when there is
occasional light spark knock. Using .gasoline with a higher .octane rating than
that which
allows occasional spark knock is an unnecessary expense.
Gasohol
Gasohol, a mixture of unleaded gasoline and ethanol (grain alcohol), is
available in some areas , You may use gasohol in yourvehicle ,provided it is no
more than 10% ethanoL Be sure the gasohol has octane ratings no lower than
those stated above for unleaded
gasoline . Some vehicles using gasohol could run leaner . Most drivers will not notice a difference, but some may. In such
cases your authorized dealer can make c.ertain adjustments, provided they are
not in violation of the Federal
Clean Air Act. " you. are still not satisfied with gaSOhol performance , you may prefer to uSe unleaded gasoline. •
NOTICE: ,Take care to not spiH gasohol on painted surfaces. Gasohol can cause paint damage, which may not be covered und~r the new vehicle warranty.
2·3

Downloaded from www.Manualslib.com manuals search engine OPERATION IN FOREIGN COUNTRIES
All models which have the Computer Command Control system, (see "Service
and Maintenance," Section 5), are designed
to use unleaded gasoline as
specified under
"Fuel Requirements" in this section of the manual. Therefore,
these cars are not intended for use in areas where unleaded gasoline is
not readily available,
There also is a chance the gasolines available in some countries will not meet the needs of your gasoline engine even if it is not equipped with the Computer
Command Control system; Low~octane-ratedgasolines may cause engine pre­
ignition and serious engine damage, for which Chevrolet is not responsible.
In either case (with or without the Computer Command Control system), the
use of leaded gasoline will cause the emission control system to lose its
effectiveness.
It could also affect coverage· under the emission warranty. In
case of emergency, leaded gasoline may be used in your vehicle if unleaded gasoline is not available, but it should not be used exclusively. If you must use
leaded gasoline exclusively
in a vehicle designed for unleaded gasoline,
different maintenance intervals will be required. For additional information and
a copy of the maintenance schedule write to: Chevrolet Motor Division, Consumer Relations Department, Warren, Michigan 48090, (in Canada, write
to General Motors of Canada Limited, Customer Service Department, Oshawa,
Ontario
L 1J 5Z6).
When writing, please
include:
•
the Vehicle Identification Number and
• the countries in which you plan to travel.
Tires
If you plan to use your vehicle in countries where speeds over 75 mph (120
km/h) are allowed, see lIem3 on page 5-12.
IMPORTANT FACTS YOU SHOULD KNOW ABOUT FUEL
ECONOMY AND HOW
TO IMPROVE IT
How you drive, where you drive and when you drive all affect how many miles/
kilometers you can get from a galion/liter of fuel. The careful attention you give
your vehicle as far as maintenance and repairs are concerned
will also help
fuel economy.
Fuel Selection
Use only unleaded gasoline meeting the octane ratings given under "Fuel Requirements" in "Starting and Operating," Section 2 of this manual.
Unleaded gasoline must be used. for the. emission control ,system to operate
properly. Leaded gasoline will damage the Computer Command Control system
oxygen sensor and affect emission control. Using leaded gasoline can also
damage other parts of the emission control system and
CQuld result in 19s8 of
emission warranty coverage.
"Jackrabbit" Starts
You can save fuel (and prolong engine and tire life) by avoiding fast starts
away from lights and stop signs.
2-4

Downloaded from www.Manualslib.com manuals search engine Chevrolet's turbocharger incUles a "TlI'bo Control Center," which is an
electronic,
closed- loop, high energy spark control system that permits the use
of today's compression ratios with unleaded fuels. It works to control spark and
provide
good driveability. H automatically compensates for fuel octane,
atmospheric conditions,
load, and .other driving conditions, by continually monitoring engine detonation and adjusting the spark.
Are There Any Tricks To Driving A Turbocharged V-61
No, riot at all. Starting procedures are as covered on Page 2-8.
As with any normal engine, the turbocharged engine should not be run at
excessive
RPM immediately upon starting or shut down abruptly after running
at high
speeds.
Trailer
Towing: It should be noted that the Turbo V-6 engine uses advanced
electronic technology to provide a combination of performance and fuel
economy under most operating conditions, including driving in high-altitude
areas . Uke 'most V-6 engines, ~is su~abIe for pul~ng light-dutytrailers up to
450 kilograms (1,000 pounds) gross weight. However, the system was not
engineered for the rigors of towing
heavytraii for
specffic recommendations) .
Don't Attempt Do-tt-Yourself Fixes: The turbocharger has but a handful of
parts, but since it is precision-manufactured with some tolerances as fine as
1/1 ,000,000 of an inch, maintenance and repairs should be done by an
authorized Chevrolet dealer or other qualified service outlet which
regularly
does such servk:e.
Catch Trouble Before . It Becomes Major: The turbocharger is an integral part
of your engine and not ar\'add-on .device.1f you spot an oil leak or hear an
unusual sound coming from the turbocharger , take it
In for service immediately .
The trouble may be simple to correct, but if allowed to continue, may
necessitate a more costly repair.
Normaf Scheduled Maintenance -
with Two Exceptions: The recommended
maintenance for the turbocharged
V -6 engine is shown in the General Motors
Maintenance
Schedule found in the glove compartment of your Chevrolet. The
turbocharged engine requires basically the same maintenance as a regular V-6
with two ",xceptions :
Engine Oil Change -every 3,000 miles.
Oil Filter Change -every 3,000 miles .
2-33

Downloaded from www.Manualslib.com manuals search engine Freeing Vehicle When Stuck . Hazard Warnong FlaSher Jacking Jump Starti ng
Towing: Cru EtIlIssion Caution EmISSic:m Control
3·9 3·' 3·4, 3'5
C ata lytic Conve rter 5-2 ~te< Command ContrOl System 2·18. ; ·3 CHECK ENGINE ligh t Exha ust Ga s Caution
F uel Requ irements (Gas) E",,~
2·18. 5·3 ,., , .,
... " Break -In Code Coo~ng
(See Ma intenance Schedule) 2·2 , .; ;·6 El ,.,
.. , 2·9 ,.,
(See "Fuel") ' ·5 . .. 3·1 Ideflti hcation Jump Starting . C>r Overheating . Spec~fcations Starling . Cold WeaHJeI Star ting (Gasoline) Temperature Gage Tempera ture 19h1 Thermostat E OOIN E ligh!
{See ··Oir . . EllIjne··) 3·3 ,., ,.,
'·6 2·t9 2· 17 5·6 2·t8 El"9oo Oil. (See ·'Oi l. E'ngine.') E thylene Glycot Antifree ze
E)(hausl Gas Cau tion E~~. System , If'Ispection. Ederior Fnsh Care .
Fabric Care
Fan,
Healer & Air Cond FASTEN SEAT BELTS Light. . Fastener s. RepIacemeflI .. Fifter s
Air Cleal'lEl!' . , Finish Care. Firish Damage . Flammable C\e.aoets .. .. F lashers Hazard w arning . Turn Signal..
Flooded EngIne . Starling . Floor Controls .. F luid Capacities .. FM Radios .. Folding Seats ...
5·' ,.,
, .,
... . 4·4 ,., 2-24. 2·25 '·6 5 ·'
;., ,., ,., . . • -1
3·.1 ..... 2:7 . ....... , 2·9 ......... 2·13 ..... ..... 7·1
F Ofeign CounlrllltS . Operation in ... FOUl' Season Ioit ~ . Four·WayHazard FlasheI' ... Freedom Battery .. Freeirig Car When Stt.JCk.". , .... Cop . Economy Tips .. Gogo Gasohol .. a...... Octane RaIing ..
;., , ., . 2 ·15 . '. ..... 2-3 ....... .. . 2-3
7 ·7
Overse3$ OpefatiOtl _. Tanl( Capacity Fuse
Cha rt
Circuit Breakers ...
""'" Engrne Temperat lJ'e
Fuel.. Oil Prossure Tachometef (Engille $peed) Voltmetet' , .. Gasoline
GEN (Gener ator) Light
Glas s Clea ning
Gto"e 80)( Guard AQaIIlSl Theft Hazar d Warning Flasher Headlight s Circuil &eakel IJimmtIf Switc h
instrument Pa~ SWitch Light s ON Reminder .. Head Restraint s .. tEAT Light. Heated Rear Wmdow .
2·' ,.,
'·3 '·3
2-1 9 2-15 2·19 2·18
2· 19
(See "Fuer') 2-\7 ..,
2-16 ,.,
3'
.7-3 2,14 2--?1
2-21
'·5 2·17 2·25 Heat er/Air Condihoner2·23. 2-24 High ·Beam Head~ghl!i 2-2t _ 1·13 5·10 . (Inside Back Colter) 5·10. !Inside Sack Cover)
Hitches. Traile( . Hood Latches .. Hood Release . Horn .. HOT UghL Ideotihcation Nt.mbers 19r>ilion K9YS Lock . In Case of EIT1efgenc:y .nocator lights ... Infant Seats & Aestra.nt .. II1l1ati04'l Pressure. Tires. Inlets . Air.
2-t3 2·t7 7.·5
,.,
2·' ,., (See "UghIS") 1 ·10. r_ll 5·12 2·23 Inside Rearview Muror , '-3 Instrumetl t Pan&! & Controts .. 2·15 InleilOl Appe«i¥1Ce Care.. 4-1 Interior & inst rumen t Lights (See "Lights" ) Jacl:: Operation & Stowage.. 3- 4. 3 ·5 . 3-6 ~ S\aI1ing .. 3- 1 Keys...... '·1 Lane Ct\ange &. Turn Signals 2-7 Lap- Shoulcler Belts . (See "Seat Bells") L_
,_­Hood ...
,..
(Inside 8acto: Cover) Sealback. From. 1-4 Trunk . 2-22 lighter. Cigarette ... 2·22 ligh<' BRAKE .... ...................... .................. 2·1 7
Bright s On. !lui> c.... O£CI( ENGINE Choke Warning .. Comoring .................. . CouttKY·· ClimrneI-Swoi1ch. HNdigflt .. Electrical S)Stem (GEN) ..
2-21 ,..
2·18.,5·2 2-17 .. ....... 2-7 '·30 2-1. 2-11

Downloaded from www.Manualslib.com manuals search engine ~_ fOIl a/or OdIe) ... .. 2·17 Engine -T""1* .... -(tOn... . ..... -2·17 FASTEN SEAT BELTS._ .......... -1·5 GEN (Electrical Sysl.m) . . ........ 2·17 Hazard War'rWIg Flasher . . ........ . 3·1 Headlight Circuit breaker.. . 2·~.7·3 HeedigtIf SWi1ch ••...• _ ..... ......•..•...• 2·7. 2.21
HeadIirj1ts On Reminder .. . ....... 2-21 Hi!tI·Beam rdcaIor .. . ....... 2·21 t-K>T. . ...........•.• _ .. ....... ....... 2-'17 Instrumenl Panel... ...... 2.15 Interior .... 01.. (PresstMe) .. ... .
--
....• . '2-30 2·19 ...... 2·14 Seal Bell FIerrindBf.. 1·8 Switch Headlights ................. ......... 2·21 TEMP (Teq)8falU'e). . ...... 2,19 LJmited·SIp Oift«enIiaI.. . ........ _5--5
""'" DOOr, . • ... ... ... 1,2 ._ .... . 2·16 GloVe Box .. 19ni1ion .. .... ............. ....... .......... _ .. 2--6 Keys ,.,
Theft Protection .... ..... ..... .........• ............. 2:2 Tn,ri:. -Powcw I\aIease .. ... 2·22 Low Seat. Child & ""8111.. . ... _. HI _ Luggage /Cargo Capacity. ; ..... ,. ..... 5-11 Mainlen PressUfe Gage ... Pressure ligtll .. RecommendaTion .
5-3. 7·1 ................ 2·19 . ................. 2·17 . ........ 5- ,3
Turbo Chaoge Interval .... ........... 2·33. 5-4 01.. Ught . . .......... .... 2-17 Openings. Roof ....... ... .. : ..... (See " Roofs") Opening 'The Hood (tnside Back Cover) Trunk ..... 2-22 Windows 1-2 Operating SpeecI$ . New car . __ -2-2 OperMing rIPS Fuel Economy .. : .... : ..... . __ ... 2"" Trailer Towing.. 1-12 Transmission .. . .... ...... 2-9 V...tilaeion Sys&em.. . ...... 2-22 Openllion ., Foreign Countries .. 2-4 Outside AIIarYiew Minor. _. . 1·3 Overheating" Engine 3-3 'Oversees Operation .. 2-4 7-8
............. Pwting Brake Pa1cing Lights ... PCII Valv. & Filter ...
... 2·. . 2·14 ... 1·. .... 7·2 Pat.1 Travel, Brake ............................ 2,14 Poishing ' & Waxing.. .. ....... ..... .......... 4-4 PoIUion ~ .... (see "Emission ConIrol")
""-~ ... Brakft: .. Door LockS .. Seett ...
.............. .......... 2-25 . .................. 2 ·14 ' ·2 .................. . 1-3 --.g ........................... . .., 2-11 2·22 Trunk Refease-.. WIfIdOoWs .. .... '·3 Pressur •• Oil GagII... .. ..... ..... ...... 2·19 L911... ............................ .. .... 2·17 Pr ....... e. ne Innation .. . So-I 2 P\..tse ""* .. 2·20 I!'ushing to Start.. . .... ..... ............. .... 5-2 ........ Andfreaze (Coolant). .. 5-6 CAp. Pressure ... . ................... ....... 5-8 o.ddng l..IMI' ... _....... ......... 5-6 0vemee8ing .... 3·3 Tha-mostat... .. 5·8 Aldol & Antennas... .. ...... 2-26 • 2~29 ..... wndoW Defogger ... . ................... .... 2-25
--I.irJWted.SIip ...... ....... 2-30. 5-9 MainTenance. ... 5·5 Stanc*d . .. 5-9 Tra iletlng.. 1·12 ReaMew Mirrors 1 -3 Aeco-v Tn. Coolant ... __ .-.................. 5·6 -.. Hood .: ' .. .' ... ' (Inside Back Cover) Seatbac k Latch 1-4 Trunk ... .. .... 2-22 Reminder Lights .......... ....... {See "L ights ") Replacomenl fastlilOef s. . .. 5· 1 Reptacement Maint9l1anc; e Schedule. .,' 5· t Reptacement Owner's Manua:.. (See Older Form) Replacement Parts.. . ....... ..... ... , ..•. 5-1 ReWaints ... Rests. Head . {See "Seal Sells") ..... 1-5 .. , 3 -9 Rocking Car When Stuc k ... RooIs C.rying cargo On .. SunrOQll ...... v-.nyt ...... ____ .... _ ......
'·2 . ..... 2 ·30 ______ ..... ...... 4-4 AotiMiOn. Tire .......... ........... .............. ..... 5·13 Ruslprooting.. .. ........ 4-5 Rust Protection SaMIy Belts .. .....
........ 4-5 .. {See "Seal 8eIts .. )
_ .............. , .. . .. .... '·4 1 ·10 CtIiIcI ...... .................. .. ~ .. . .............. ... ... 1,3 Heet RMltaints ............................... " 1-5 laIcl'lM ..
.... -
. . ..... .... .......... .. 1-4
c. ................................ .. • ... 0&-3 1·10 Child Reser ..... .