Engine Oil

Jim Halderman Darrell Deeter Jim Anderson

Introductions: Jim Halderman

 Author of many automotive books and lives in Dayton, Ohio.

 http://jameshalderman.com

 [email protected]

Darrell Deeter

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Assistant Professor Saddleback College Been teaching about oil for many years

Jim Anderson

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Greenville High School (Ohio) NATEF board member

Topics to be Discussed

• • • • •

Types of oils API grades SAE grades ACEA specifications OE specifications (GM, Ford, BMW etc.)

Ever hear this?

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“Do we have to know all of this?”

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Therefore I started labeling content:

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A. Need to know

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B. Nice to know

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C. Miscellaneous useless information or in other words………..Who cares???

Determine Four Things

1. The recommended oil change interval 2. The recommended viscosity (SAE rating) 3. The recommended API rating 4. The vehicle specific specification of the oil Need to know-right?

Looks like a good oil … Is it?

Does Not Meet GM and Others

High-Mileage Oil

• • • • •

Usually higher viscosity and therefore can not meet ILSAC GF-4 rating Has esters to swell seals To be used in engines with higher than 75,000 miles Does not have the energy rating of conventional oils Need to know?

Look for GM, Ford, Chrysler, Honda and other manf. spec’s on label

Meets Ford and Chrysler but not GM. If the manf. spec is NOT listed, it does not meet their requirements. DON’T USE.

Do you think that all “quickie” oil change places use exactly the correct oil for each vehicle?? What about a warranty claim??

API Ratings

• • • •

Gasoline Engine Ratings SA-SJ=older and now obsolete ratings SL-2001-2003 SM-2004+ SN -October, 2010

• • •

Diesel Engine Ratings CA-CC=obsolete Current ratings = CF-4 (four cycle); CG-4 and CJ-4 (low ash) (2007+ Engines using ULSD) Need to know stuff

ILSAC Ratings

ILSAC=International Lubricant Standardization and Approval Committee

• • • • • • • •

GF-1 -First used in 1993 GF-2 -updated in 1997 GF-3 -Updated in 2000 GF-4 -Updated in 2004 GF-5 -Scheduled for summer 2010 for use in 2011+ engines “Star Burst” is always on the front of the container.

GF means g asoline f ueled engines Star Burst indicates that the oil is of a good quality and meets the GF rating. Usually, only 0W, 5W and 10W oils will have this symbol.

Nice to know stuff……….but…..

What’s Falling?

•

The viscosity is falling

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The sky is NOT falling

Viscosity

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Viscosity is a lubricant’s resistance to flow.

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The viscosity of an industrial lubricant is normally given in:

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cSt (centistokes)

mm²/second

or

–

measure of viscosity kinematic



Viscosity is the main feature which influences the efficiency of lubrication

© epc graphics

Viscosity Measurement

Measured by timing oil flow through a calibrated orifice @ 40 °C (104 F) and/or 100 °C (212 F)

Calibrated orifice 40 °C or 100 °C

Effect of Temperature on Viscosity

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Viscosity is a measure of a fluid’s resistance to flow (“how thick it is”)

•

Viscosity of a fluid is a function of temperature

2 0 0 1 8 0 1 6 0 1 4 0 1 2 0 1 0 0 8 0 6 0 4 0 2 0 0 0 5 0

TEMP ER ATU R E (C )

1 0 0

uh….a liquid gets thinner as it gets hotter!!!)

Viscosity Index Improvers

VI Improvers - Are polymers (very large molecules) which inhibit the oil from thinning out at high temperatures In the Cold With Heat Uncoiling Counteracts the Normal Thinning of Oil

VI Improver

Viscosity THICK

Multigrade Oils

SAE 40 SAE 10W40 SAE 10W THIN -18 Temperature ( ° C) 100

SAE Grades

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SAE = Society of Automotive Engineers COLD (WINTER) HOT -22 O F 212 O F

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5W = The “W” winter means and the oil is tested at -30 C (-22F)

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SAE 5W 30 = The “30” is the viscosity measured at 100 C (212 F) Need to know stuff THE “W” DOES NOT STAND FOR “WEIGHT”

Do customers know?

Do service technicians know?

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SAE=?

Engineers) (Society of Automotive

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API=?

Institute) (American Petroleum

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ILSAC=?

(International Lubricant Standardization and Approval Committee )

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ACEA=?

(Association des Contructeurs European d’Automobiles) Need to know or nice to know?

Scary Story

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New car; FREE first oil change

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Dealer used SAE 10W-30 and not the specified SAE 0W 20 (Owner’s manual)

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When talking to service manager he said that it was OK to use and that “DSM can change any specifications at any time” Service manager said that he was not reimbursed for the more expensive oil

ACEA Gasoline Ratings

Association des Contructeurs European d’Automobiles

• • • • • •

A1 -Low friction; low viscosity A2 -General use with regular oil changes A3 -High performance and/or extended oil change intervals A4 -For gasoline direct injected engines A5 -Low friction; low viscosity; extended oil change intervals Nice to know stuff

ACEA Diesel Ratings

• • • • • •

B1 -Low viscosity passenger vehicle indirect-injected diesel engines B2 - Passenger vehicle indirect-injected diesel engine. Low viscosity.

B3 -High performance indirect-injected diesel engines; extended oil change interval B4 -Direct-injected diesel engines B5 -Low viscosity and extended oil change interval Nice to know stuff

ACEA Combined Ratings

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A1/B1 -Low HTHS, semi synthetic A3/B3 -High HTHS; Mineral or semi-synthetic A4/B4 -High HTHS; synthetic A5/B5 -Low HTHS, High fuel economy additives; extended oil change intervals; synthetic HTHS =High temperature/ high shear rate viscosity (ASTM D-4683) Miscellaneous useless information

ACEA “C” ratings

• • • •

C1 - Basically an A5/B5 oil with low SAPS, Low HTHS.

C2 - A5/B5 with low HTHS and mid level SAPS C3 - A5/B5 (meets 229.3) with high HTHS and mid level SAPS C4 -Low SAPS; High HTHS SAPS

means Sulfated Ash, Phosphorous and Sulfur

C rating are catalytic converter compatible oils

Vehicle OE Specifications

• • •

BMW -Long Life (LL-98; LL-01; LL-04) Changing the oil requires the dealer Service Computer to run all the auxiliary oil pumps. Note : The filter is located behind the splash shield in the left front wheel housing; the capacity is 8 liters of BMW synthetic 10W-60 oil. (AVERAGE COST OF AN OIL CHANGE = $160.00)

General Motors

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General Motors GM 6094M (many GM vehicles); need to know stuff GM 4718 (synthetic Corvette); dexos 1 (Gasoline engines-2011+) dexos 2 (Diesel engines-2011+)

OE Specifications-

continued Ford WSS-M2C153-H ;(SAE 5W-20 GF-3) WSS-M2C929-A (SAE 5W-30; 4.0 Liter; 2.0 Liter) WSS-M2C930-A 5W-20; GF-4 Need to know (SAE

OE Specifications-

continued

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Chrysler -MS-6395 (2005+ vehicles); MS-10725 (older than 2005) Need to know stuff

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Honda -HTO-06 (Mobil 1 for Acura RDX turbo only)

OE Specifications-

continued Mercedes 229.1

-Super high performance diesel (SHPD) 229.3

-SHPD extended drain 229.3

-gas and diesel; extended drain 229.31

- gas and diesel low ash (LA) 229.5

-long life (LL) 229.51

-low ash and LL

OE Specifications-

continued VW and Audi Gasoline engines: 502.00; 505.00;505.01; 503; 503.01; 505; Diesel engines : 506 ;506.1;507

What is different with European ratings?

• • • •

Usually very high viscosity index (VI) meaning that the SAE grade is broad; often requiring SAE 10W-50 or 5W-40 Extended oil change intervals requiring a robust additive package Low SAPS and Sulfur) (Sulfated Ash, Phosphorous Higher HTHS (High temperature/ high shear rate viscosity)

Case Study

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2003 VW Passat with a 1.8 liter turbocharged four cylinder that had been using API approved oil instead of VW 502 oil developed serious oil gelling problems Some similar vehicle engines have seized

Motorcycle Oil

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Be sure to use oil designed for use in motorcycles which usually has the following characteristics 1. Higher level of ZDDP 2. Broader viscosity range (usually SAE 10W-40 or SAE 20W-50) 3. Often designed to work with a wet clutch Need to know?

Why is Friction Reduced?

Fluid Molecules

There is less “friction” between fluid molecules moving over each other than between the two surfaces moving across each other.

Connecting Rod Example

The formation of an oil wedge in a plain bearing Metal-to-metal contact Oil wedge supports load

SYNTHETIC OILS

C 10 H 20 C 10 H 20 C 10 H 20 C 10 H 20

MINERAL OILS

Small molecules vaporize at high temp H H H H S H-C-C-C-C-C-H H O H N H Impurities oxidize All molecules same size Large Molecules thicken at low temp

Additives Improve the Base Oil

• Viscosity Index (VI) improver –

modifies the viscosity of the base fluid so that it changes less as the temperature rises allows the lubricant to operate over a wider temperature range

• Pour point depressant –

keeps the lubricant flowing at low temperatures

• Antifoam –

foam reduces the effectiveness of a lubricant

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antifoams reduce/stop foaming when the lubricant is agitated or aerated

Additives Protect the Base Oil

• Antioxidants –

slow down the breakdown of the base fluid caused by oxygen (air) and heat

– oxidation is the main cause of lubricant degradation in service • • Oxidation of the base fluid causes: – –

acid formation (



corrosion) sludges, varnishes (



blockages) Life of a lubricant in laboratory oxidation tests is often used to give an indication of service life Oxidation

Additives Protect the Engine

• Rust inhibitor –

inhibits the action of water on ferrous metals (e.g. mild steel)

• Corrosion inhibitor –

protects non-ferrous metals (e.g. copper)

• Anti-wear additive –

forms a protective layer on metal surfaces to reduce friction and prevent wear when no lubricant film is present such as ZDDP .

• Extreme pressure additive –

as for anti-wear additive but functioning only when heavy loads and temperatures are encountered Roller bearing wear Gear tooth wear

ZDDP

• •

The phosphorous content of

ZDDP= Zinc Dialkyl Dithiophosphates (commonly called zinc and/or phosphorous or ZDP)

Ford says that the number one reason for catalytic converter failure in gasoline engines is phosphorous poisoning.

The phosphorous content of current motor oils is being limited by API.

CJ-4 is a great example. Phosphorous does not burn and collects in particulate filters in the form of ash

• •

Lots of research is being done to find an effective anti-wear additive that does not use phosphorous.

Need to know?

What About Older Engines?

• – – –

If flat-bottom (non-roller) lifters are used then a ZDDP additive may be needed: During break-in During service Need to know?

How much zinc is needed?

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Shell Rotella T 15W-40 ( API CJ-4) has about 1200 ppm zinc. This is 50% more zinc than current engine oils (API SM, GF-4) which typically contain about 800 ppm zinc

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Engine oil had about 1200 ppm zinc prior to 2001

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In 2001 the zinc was reduced to 1000 ppm and in 2005 reduced again to the current 800 ppm

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These are typical zinc levels; API ratings do not specify the zinc content, just oil performance

Shell Rotella T

–Use Shell Rotella T diesel oil which does still have enough ZDDP to protect the engine

G-Oil

• • • • • •

Made from cow parts “Ultimate Biodegradable is the highest biodegradability ranking determined by ASTM Standards (2.1 ASTM D 5864)” API rated=?

ILSAC rated= no www.getg.com

Miscellaneous useless information

Other Additives?

• • • •

Don’t USE THEM!!!

Most if not all oil experts warn about adding anything to the oil.

Vehicle manufactures warn not to add any additives to the oil.

Most are friction reducers such as posi additive

The “3,000 Mile Myth”

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California’s 3,000 mile myth program was started because research showed that 73% of California drivers change their oil more frequently than recommended by the vehicle manufacturer

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General Motors has joined the campaign.

Oil Life Monitor

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algorithm –Computer programs contain algorithms that specify the specific instructions a computer should perform (in a specific order) to carry out a specified task

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Mileage (3,750-7,500 miles) (usually every 5,000 miles)

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Capacitance sensor (measures the oil)

GM Oil Life Monitor

GMOLS (GM Oil Life System)

SCAN TOOL DATA STREAM SHOWING OIL INFORMATION

Case Study

• • • • • •

2007 Dodge Durango 5.7 liter Hemi with MDS (multiple displacement system) Oil change using SAE 10W 30 Check engine light came on and stored P0521 DTC stored DTC Description=Oil pressure not reaching specified at 1250 RPM Changed to specified SAE 5W-20; cleared DTC ; now no DTC during operation.

Need to know

Testing Oil

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oil sample to lab for analysis

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For example:

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Blackstone Laboratories $22.50 www.blackstone labs.com

Nice to know

Oil Test Results

• Spectral Exam

coolant.

: Establishes the levels of wear metals, silicon, and additives present in the oil. Also checks for

Note: Silicon = dirt; not sealer • Viscosity

: Determines the grade of oil.

• Insolubles

: Quantifies the percentage of solids present in the oil.

• Flash Point

: Determines the flash point of the oil to determine whether any contamination is present in the oil (such as fuel)

Understanding the Lab Report

• • • • • • • • • • • • •

Aluminum : Pistons, bearings, cases (heads & blocks) Chromium : Rings, a trace element in steel Iron : Cylinders, rotating shafts, the valve train, and any steel part Copper : Brass or bronze parts, copper bushings, bearings, oil coolers Lead : Bearings Tin : Bearings, bronze parts, piston coatings Molybdenum : Anti-wear additive, some types of rings Potassium : Antifreeze inhibitor, additive in some oil types Boron : Detergent/dispersant additive, antifreeze inhibitors Silicon : Airborne dirt, antifreeze inhibitors Sodium : Antifreeze inhibitors, additive in some gasoline engine oils. Calcium : Detergent/dispersant additive Magnesium : Detergent/dispersant additive

•

Nice to know

Oil Related Faults

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Gelling and sludge:

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Usually caused by extended oil change intervals

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Can be caused by coolant in the oil

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Engine design or cooling system fault that causes a lot of heat to be in the cylinder which bakes the oil

–

Need to know?

Improper operation of the PCV system can also cause engine sludging.

Oil Related Faults

• • • •

2007 Toyota lawsuit

– – – –

Several others facing similar actions

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Audi BMW Chrysler Saab VW No recalls No admission of fault Toyota Class-Action Lawsuit Affected Models Model Avalon 6 cyl Camry 4 cyl Camry 6 cyl Celica 4 cyl Years Affected 1997 - 2002 1997 - 2001 1998 - 2002 1997 - 1999 Highlander 6 cyl Lexus ES300 2001 - 2002 1997 - 2002 Lexus RX300 1999 - 2002 Sienna 6 cyl Solara 4 cyl Solara 6 cyl 1998 - 2002 1999 - 2001 1999 - 2002

Watch Out for…

• • • • • •

Recommended for use where.....

May be used where the following specifications apply.....

Recommended/Approved by…….??

Racing/Track formula - What does this mean?

“Synthetic blend" - How much synthetic?

Need to know?

Sample- not API approved

Please do the following:

• • • •

Check the oil level BEFORE changing the oil and document the work order (IMPORTANT) WHY?

Check and use the oil specified by the vehicle manufacturer Recommend that the oil be changed according to the specified distance/time interval Reset the oil monitor light.

Always wear PPE

Frequently Asked Questions

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Question: Can you go back to using conventional oil after using synthetic?

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Answer : Yes. By law, all oil is miscible meaning that it can be mixed.

Frequently Asked Questions

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Question: Do I have to break in a new engine on mineral oil before switching to synthetic oil?

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Answer : Synthetic oil (Mobil 1) is used by many vehicle manufacturers in new vehicles. Most experts advise keeping mineral oil for the first 5,000 miles.

Summary

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Go to HTTP://jameshalderman.com

for the chart that shows how to reset the light for all vehicles. FREE Click on “Charts and Specifications” then look under Engine Repair (A1) Genie light??

>>>>>>>>>>>>

Information

Go to Mobil 1 web site and search for “chart”

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www.gf-5.com

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Information on the new ILSAC GF-5 rating due out in 2010 plus other good oil information

Contact Information

Jim Halderman: [email protected]

Darrell Deeter [email protected]

Jim Anderson [email protected]