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Factory oil filters vs. After Market oil filters - READ ONLY

100 messages,  Last post on Feb 13, 2001 at 5:48 AM

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#98 of 100 Toyota air filters by loucirrus99 Feb 12, 2001 (9:23 pm)
First,in the previous post about the Purolator Pure One oil filters, I have not had any analysis done on my oil but have definitely noticed that my oil stays cleaner longer with the Pure Ones.   In relation to the Toyota air filters what indicates that they are better than say Frams or Purolators? Is it that they need to be changed more frequently indicating better filtering?   Thanks in advance        Lou
#99 of 100 armdtn.. by adc100 Feb 13, 2001 (3:53 am)
Just a conservative approach. We could probably argue about it. As you know syn cleans up really good and if the engine is very dirty it may break so much loose at a time that it could mess up the sender unit (note likely though). He'll still get benefits of syn and be able to go longer on the first change without the oil getting dark real fast, which might freak him out. I'm an old man and when you get there you want to do everything slower and more conservative.   Later
#100 of 100 locirrus99 by armtdm Feb 13, 2001 (5:48 am)
Toyota air filters. I change once a year. Well, I do oil analyis at least once a year, sometimes twice and over the 9 year life of this car (still going at 130,000) I noticed that the silicon (dirt, well, could be silicon seals as well,especially in the first 20,000 miles. Analysis cannot tell if dirt or silicon seals wearing in) in the analysis (measured as parts per million/ ppm) was lower when I used the Toyota air filters. The others I tried were Puralator and the Amsoil oil foam filters. (foam is fine but a real pain to clean and re-oil and I saw no difference) I did see a drop in the ppm when I kept the same air filter but either the Amsoil or Pure One filters for oil. So, my statement is based solely on my experience with the Toyota and oil analysis.

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