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AMSOIL Beats Other Oils on the Dynometer

AMSOIL wins with FAST FOURS and ROTARIES

"What do you know about the oil in your car's engine? From the ads, you're led to believe the most exotic part of a Ferrari's engine is in the sump," writes Fast Fours and Rotaries (FFR) (July 1998), an Australian performance car jounal.

The basic concept of oil is to provide a film of lubrication between two surfaces," FFR continues, "reducing friction, wear and heat and ensuring an engine's long life span. But the reality is that while all claim to be superior, there are some that are better than others. We decided to test most of the major brands to see how the well-known brands, the ones most of us can readily buy, shape up in a real-life engine test."

Test Procedure

FFR chose to test only high quality synthetic oils. High quality synthetics are each oil makers' top product and high quality synthetics are "most relevant" to performance enthusiasts. The testers ran each oil through a "short yet grueling" dynomometer session followed by professional oil analysis.

Sam Blumenstein, of COME Racing, performed the dyno testing on his SuperFlow engine dynomometer using a mildly modified five liter V8. Bill Reid, of Lubrication Management, performed the oil analyses. Ryco supplied oil filters.

After establishing baseline performance using a mineral oil, the test team subjected the test oils to three timed sessions at high engine loads, between each of which were three full-power runs.

"The intent," says FFR, "was to establish a number of criteria. Firstly, whether any of the oils would improve horsepower; whether any of the products would lose viscosity; evaluate (the) ability (or lack thereof) to prematurely wear components or suffer from discoloration. As it turned out, discoloration didn't prove to be a factor.

We approached ten oil suppliers/manufacturers, informing them of our intention, and all were reasonably keen and eager to be involved, although Pennzoil didn't want to commit and Penrite flat out said no -- a little strange given this company has actually advertised with and for this (performance) market."

Viscosity Test

FFR first subjected the oils to a test of viscosity retention. "Note," writes FFR, "that being such a short test it was felt that none of the oils would lose any of its viscosity rating, and indeed six oils suffered an inconsequential loss of less than one percent." The other five, Torco MPZ, Shell Helix Ultra, Shell Helix Plus, Hi-Tec HTO and Castrol R suffered significant viscosity losses.


AMSOIL Series 2000 Synthetic 20W-50 Racing Oil: No Viscosity Loss Reported

Oil
Product
Viscosity Loss %
Type
Test #
Torco
MPZ
18%
Synthetic
5 & 6
Shell
Helix Ultra
14%
Synthetic
8
Shell
Helix Plus
12%
Petroleum
1
Hi-Tec
HTO
8%
Synthetic
9
Castrol
R
6%
Synthetic
12

FFR points out that the loss of viscosity suffered by the five oils was very rapid. "Under normal conditions it's suggested oil which loses viscosity this quickly would be subject to significant losses over 5000 km (8045 mile). Indeed, one would be suspect of the potential for increased wear over this period."


Wear Metal Test

Oils inhibit wear by inhibiting metal to metal contact of engine parts. To test each oil's ability to protect parts from contact and wear, FFR subjected each oil to a test of wear metal generation. Their test "indicates the size and number of wear particles for each oil. The higher the rating (larger number) the greater the number and size of wear particles," writes FFR.

AMSOIL Series 2000 Synthetic 20W-50 Racing Oil: Lowest Wear Metal Generation

Rating
Oil
Average
Particle Size
Overall (micron)
Test #
#1
Amsoil Series 2000
5 - 10 micron
5 to 50 micron
10
#2
Hi-Tec HTO
15 - 20 micron
10 to 60 micron
9
#3
BP Visco 5000
15 - 20 micron
15 to 60 micron
4
#4
Shell Helix Ultra
15 - 25 micron
15 to 60 micron
8
#5
Shell Helix Plus
10 - 20 micron
15 to 50
1
#6
Mobil 1 5W-50
20 - 25 micron
15 to 60 micron
3
#7
Mobil 1 0W-40
15 - 20 micron
15 to 50
11
#8
Castrol R
20 - 30 micron
15 to 100 micron
12
#9
Torco
15 - 20 micron
15 to 100 micron
5 & 6
#10
Royal Purple
15 - 20 micron
15 to 100 micron
7
#11
Castrol SLX
20 - 25 micron
15 to 100 micron
2

Horsepower

FFR averaged three runs per oil, noting power figures at 500 rpm increments between 3000 and 5000 rpm and noting peak power and torque. While the engine FFR used for testing was a large toleranced engine for which a 20W-50 grade oil is ideal, some of the oil manufacturers supplied 0W-30 grade oils for testing. The low grade viscosity oils delivered somewhat greater horsepower than the high grade oils did, but as FFR notes, "around 4000 rpm the power produced is very similar across the range, and it's only really at the top end where there are substantial differences. That said, the AMSOIL (20W-50), Castrol R (10W-60) and Mobil 5W-50 prove themselves very well."

Conclusion

"Although we've provided criteria to pick and choose an oil, the stand-out to us appears to be AMSOIL, rating well in the viscosity and producing good horsepower.

"With the variety of grades, use this test as a guide but always follow the manufacturers recommendation. But if we were to stick our neck out in the anticipation of the law suits, from the information we gathered specific to the supplied oils in this test, we'd rate the oils in the following order:

#1 AMSOIL
#2 BP Visco 5000
#3 Mobil 1
#4 Mobil 1
#5 Hi-Tec HTO
#6 Shell Helix Ultra
#7 Royal Purple
#8 Castrol R
#9 Castrol SLX
#10 Torco"

Other Dyno Test Results

AMSOIL is perfect for turbo-powered high performance engines

Robert Riley
Authorized AMSOIL Independent dealer
Amsoil Quincy, Massachusetts
Telephone (888) OIL-4CAR
Click here to send email

Customer Tesimonials:

Satisfied Customers Praise AMSOIL

"We have a $15,000 motor to protect. That's why we use AMSOIL."
- Brian Cardiff,
Hawaiian Punch Monster Truck Owner

"I own NASCAR race teams and a car dealership in Colorado Springs. I have been a long time user of AMSOIL products in both enterprises. AMSOIL
synthetic lubricants are required for my late model race cars and the tow vehicles hauling these cars. My
service department at the dealership is required to feature and use AMSOIL products. From dependable, high speed lubricants to hand cleaner, we rely on
AMSOIL to get the job done"
-Mike Bonicelli,
Bonicelli Racing Enterprises

Where you can use Amsoil
Performance & Competition:
Performance vehiclesneed performance oil. AMSOIL Synthetic Racing Oil reduces heat and wear whil providing quicker engine response and increased horsepower
Custom & Show :
Vehicles stored for long periods of otime need rust and corrosion protection. AMSOIL motor oils and fuel stabalizer protects against harmful conditions to preserve irreplaceable engines

Snowmobiles & Personal Watercraft :
AMSOIL Series 2000 2-Cycle Racing Oil maintains a higher level of lubricity than 2-cycle petroleum oill, while dramatically reducing friction and wear.
Motorhomes & RVs:
Motorhomes and RVs operate in the widest range of environments and temperature extremes. AMSOIL Motor Oils provide dependable starts, maximum power amd increased fuel economy.
4-Wheel Drives:
AMSOIL Gear Lubes and motor oils provide the hard pounding protection needed by 4x4s. Even under the most extremeconditions and temperatures, AMSOIL lubricants perform and protect
Family & Personal:
AMSOIL synthetic lubricants and filtration products provide unsurpassed, long-lasting service and protection for cars, trucks and other family fleet equipment.