74-11 DWP
X?**-
Evaluation of Engineering Lubricants Systems Corporation's
"Val-Do" Combustion Cleaner and Power Lube Fuel Additives
September 1973
Emission Control Technology Division
Office of Air and Water Programs
Environmental Protection Agency
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Background
The Emission Control Technology Division was contacted by
Engineering Lubricants Systems Corporation concerning
"Val-Do" Combustion Cleaner and Power Lube additives. Upon
receiving favorable data from Olson Laboratories the Test
and Evaluation Branch initiated a test program.
Device Description
Prior to the initiation of a mileage accumulation program one
ounce of Combustion Cleaner was applied to each of the engine
cylinders through the spark plug holes. After a short soak
period the engine was started and approximately one pint of
Combustion Cleaner was poured into the engine through the
carburetor. The engine was then run at fast idle for approx-
imately 15 minutes. The Power Lube additive was added to the
gasoline in a concentration of one ounce per every four gallons
of fuel, and used during mileage accumulation and gaseous
emission testing.
Test Program
Test work was conducted on a 1963 Chevrolet with a standard
transmission and a 1962 Chevrolet with an automatic trans-
mission. Both vehicles were powered by 283 CID engines. Mileage
accumulation was conducted using the 1962 Chevrolet. The 1963
Chevrolet was only used to confirm initial before-and-after
combustion cleaner compression test results. Test work on the
1962 Chevrolet included compression tests before-and-after
application of the Combustion Cleaner and compression tests
after accumulation of 500 miles. Gaseous emission testing in
accordance with the 1975 FTP was conducted before-and-after
the mileage accumulation. Gaseous testing included one test
using the light duty Diesel procedure with a heated FID as
the fuel additive was oily in nature and suspected of having
a possible heavy hydrocarbon exhaust component.
Results
The effect of the cleaner and fuel additive on engine compression
is given in the attached Tables I and II. It can be seen that
there was a marked increase in compression pressure immediately
following application of the cleaner, but that there was no
longer an effect after 500 miles of driving. Gaseous emission
results for work conducted on the 1962 Chevrolet are given in
the attached Table III. No marked emission reduction is apparent.
Limited heated FID work suggests that the fuel additive may
contribute a heavy hydrocarbon exhaust component.
The application of the Combustion Cleaner created objectionable
visual white smoke for at least 10 minutes after application.
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Conclusions
1. No marked emission reductions were observed after application
of Val-Do Combustion Cleaner and 500 miles of driving using
the Val-Do Power Lube fuel additive.
2. Limited data suggests that the Power Lube additive may
contribute a heavy hydrocarbon exhaust component.
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TABLE I
Compression Test Results - 1962 Chevy
Compression pressure Compression pressure Compression pressure Compression pressure
before application after application after 26-mile after 500-mile dyno
Cyl. No.
1
2
3
4
5
6
7
8
of comb, cleaner
150 psi
152
150
155
150
150
152
145
of comb, cleaner
170 psi
162
175
170
165
165
162
162
Ann Arbor prep route
165 psi
160
168
168
163
160
165
160
mileage accum.
150 psi
150
155
150
150
150
155
150
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TABLE II
Compression Test Results - 1963 Chevy
Compression pressure Compression pressure
before application after application
Cyl. No. of comb, cleaner of comb, cleaner
1
2
3
4
5
6
7
8
150 psi
155
150
155
155
150
150
155
175 psi
180
175
180
180
180
180
175
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TABLE III
1975 FTP Results on 1962 Chevy
Baseline
Average
HC (gm/mi)
5.27
4.95
4.89
5.03
CO (gm/mi)
48.06
46.77
44.87
46.57
NOx(gm/mi)
3.76
3.54
4.03
3.78
After Combustion Cleaner and 30-miles Use
with Fuel Additive
HC
5.22
5.17
Average 5.20
Cp_
44.80
44.82
44.81
NOx
3.24
3.79
3.52
After 500-miles Use with Fuel Additive
HC CO NOx
5.64
4.36*
4.50
Average 4.83
58.23
36.19
38.24
44.22
4.41
3.29
3.25
3.65
*Heated FID HC = 5.90 gm/mi
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