Recent content by Buurin

This fill was in the car for 11 months, almost a year. Some wear, silicon keeps going up (if only slightly), and I still got that K&N there. Fuel is still there. Any suggestions? AFAIK I can leave my next fill (also all Mobil1 5W-30) for a full year and beyond. Data for this UOA: Al 3...

Originally Posted By: theedge67 I have also been using OAI lately. Cheaper, and they include the TBN test for free. I don't really care about Blackstone's comments. They really don't tell me anything anyway other than "looks good, run the oil longer, blah blah..." Then you really are doing...

My 97 Camry has the cheap green stuff and is changed every 2 years. My 99 Corolla has Toyota Red from factory, and - I don't know if it has ever been changed, but - I did my first coolant change on it in July 2007.

Lab is Blackstone. Their comments follow: Quote: Silicon continued to increase in this sample. We think that this increase may have contributed to the high iron and copper that we found. Iron at this level shows excess wear at a steel part, while copper comes from brass/bronze parts. The...

Yes. One bottle of it is the Post-Katrina, recertified donut+starburst SM in new style bottle.

This fill is part extended drain experiment, part neglect. Before this fill of Mobil 1 there's another fill of half Mobil 1, half Pennzoil 5w-30 SM, just to use them up. Oil filter is Toyota OEM YZZF1 - the long one. A K&N drop-in air filter was installed very late into this fill. UOA by...

To answer 04SpecV (and to fill in the blanks), the car has 88315km at sample time. City miles for the most part ~20km roundtrip, with a highway run up to 140km/h every about 5 weeks. Oil filter is Toyota OEM. I had local garage and dealer do oil changes every 6000km (regardless of time) until...

I am full of firsts here... First post here, and I bring with me my first ever UOA report with a strange twist... Sus Viscosity @ 100C = 57.0 Flashpoint = 350F Fuel = 0.8% Insolubles = 0.4% No antifreeze or water No makeup oil TBN 4.0 6881 kilometres on oil for over 6 months This is also my...