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Oil Tests Analysis
These oil analysis tests have been performed by Cleveland Test Labs, Spectro-Chem Division in Phoenix, AZ.
Left Pic, With En-Valve:
78 Chev, 350 CI, with 136K miles, 6,299 miles on oil. En-Valve on second year.
Iron=24, Chrome=1, Lead=10, Copper=13, Alum=5, Silicon=25 |
Right Pic, Test 1 without En-Valve:
350 CI, with 78K miles, 3,200 miles on oil. Tests 2 and 3 with En-Valve.
#1 Iron=210, Chrome=8, Lead=97, Copper=99, Alum=24, Silicon=45
Readings After En-Valve (Average):
Iron=71, Chrome=3.5, Lead=45.5, Copper=128, Alum=11.5, Silicon=25 |
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Test Exhaust Emissions
| 1993 Chevrolet |
when new |
HC: 0.50 |
CO: 9.0 |
NOX: 1.0 |
| 1993 Chevrolet |
with En-Valve |
HC: 0.198 |
CO: 4.824 |
NOX: 0.586 |
| 1994 Honda |
when new |
HC: 0.25 |
CO: 3.4 |
NOX: 0.4 |
| 1994 Honda |
with En-Valve |
HC: 0.112 |
CO: 1.680 |
NOX: 0.180 |
1993 Chevrolet at 55K miles with En-Valve is 41% less than when it was new.
1994 Honda at 47K miles with En-Valve is 49% less than when it was new.
CVS-75 FTP tests by Environmental Testing Corp., Orange, CA
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