Emission of phosphorus-containing and phosphorus-free fully formulated crankcase oil using an engine dynamometer

Engine emissions and poisoning effect of synthetic oil's additives on catalytic converter using an engine dynamometer

“…As in the previous studies carried out with commercial and P‐free crankcase mineral oils, the result of this study may indicate that, in order to reduce air pollution and prevent catalytic converter poisoning, P‐free crankcase oil could be a viable alternative (Kaleli, 2001; Kaleli and Khorramian, 2000). It is to be noted that we have not measured the NO x content of the emissions, but we speculate that its generation will also be lower for the engine operating with P‐free oil.…”

A study on friction behavior of rapeseed oil as an environmentally friendly additive in lubricating oil

“…It is well known that biodegradability and toxicity are the most extensive concerns for environment-friendly lubricants (Cao et al, 2000). Kaleli and Khorramian (2000) studied the effect of phosphorus and phosphorus-free additives in the lubricant on exhaust emissions using an engine dynamometer for 22 min. Within experimental accuracy, phosphorus-free lubricants have shown satisfactory engine performance characteristics and similar HC emissions under identical engine test conditions.…”

“…Within experimental accuracy, phosphorus-free lubricants have shown satisfactory engine performance characteristics and similar HC emissions under identical engine test conditions. However, there is a marginal improvement of carbon monoxide emission by phosphorus-free oils over the phosphoruscontaining oils (Kaleli and Khorramian, 2000). Kaleli investigated the poisoning effects of two 10W30 (mineral and synthetic) base phosphorus containing (commercial) and phosphorus-free (P-Free) crankcase oils on a catalytic converter and emission-engine's performance characteristics using an engine dynamometer.…”