In addition to their longevity, iridium spark plugs also provide improved fuel efficiency and overall engine performance. The consistent and powerful spark produced by iridium spark plugs helps to optimize combustion in the engine, leading to better fuel economy and smoother acceleration. This can result in savings at the gas pump and a more enjoyable driving experience for car owners.
iridium spark plugs for car

Bauerle and Bruhnke7 found that aeration reduces the effect of oil additives on fluoroelastomer properties. Some of their data is reproduced in Fig. 14.4,5 showing the effect of aeration of an SF-grade 5W30 oil on the retention of elongation of a VDF/HFP copolymer (FKM-E430), a VDF/HFP/TFE terpolymer (FKM-B600), and a VDF/PMVE/TFE fluoroelastomer (FKM-GFLT). The HFP-containing polymers show much better retention of properties with aeration.
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