Abstract: A lubrication system having an oil filter modified to replace or supplement the performance of lubricant additives that may be used within an internal combustion engine to increase the performance of a lubricant. The formulation of the lubricant is changed in accordance with the chemicals placed in the oil filter. For example, when the oil filter contains a strong base, the lubricant concentration of detergent will decrease, in some cases to zero, while the dispersant concentration in the lubricant will increase. The dispersant is the ideal weak base to neutralize combustion acid at the piston ring zone, carry the resultant weak base-combustion acid complex to the strong base in the oil filter, undergo ion exchange with the strong base, immobilize the acid in the oil filter and recycle back to the piston ring zone for reuse as an acid neutralization agent.

Abstract: A chemical filter for use within an internal combustion engine lubrication system. The chemical filter employs filtration media including particles having internal pores and interstitial pores formed between adjacent particles. The internal pores and the interstitial pores collectively define filtration media pores, and a strong base material is associated with at least some of the internal pores. The filtration media has a surface area greater than or equal to 25 m2/gm that is derived from filtration media pores that are large enough to receive a combustion acid-weak base complex contained within oil flowing through the chemical filter. This enables an ion-exchange process to occur that immobilizes the combustion acids and regenerates the weak base, so as to extend the time intervals between oil drains, among other benefits.