detergents

  1. Z

    High Detergents/TBN for shorter oci's

    Since I purchased HPL oil and I plan on keeping reasonable 5,000 miles oci 's, I wondered if there is any advantage to the high Detergents/TBN levels of this oil in a oci of this length? Any possible disadvantages of going on the high side when not really necessary?
  2. Z

    Still having oil Detergents confusion....

    I keep reading conflicting information on detergents in motor oil. Some sources say they clean, others say they keep deposits from forming on surfaces. Can they do both, or which is it? Does one do a better job then another? What in motor oil actually cleans up old deposits? Is it the base oils...
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