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Originally Posted by ZeeOSix Originally Posted by Talent_Keyhole I have used Fram for many years, even when an army of DIYrs on youtube, self proclaimed experts, repeatedly condemned Fram for not using metal end caps. There are a lot of people on YouTube that don't know what they are talking...

Originally Posted by OVERKILL Looks like excellent filtering performance there, thanks for the C&P What do you base your opinion on that the filter performance was excellent? Compared to what? It appears the filter media is still intact, at least the small portion seen in the pics. That is...

Originally Posted by ZeeOSix Originally Posted by Talent_Keyhole Blackstone Labs confirmed that in modern engines, up to 20% of oil may remain in an engine. How much of the serviceability of the oil is reduced by mixing with the old oil? What impact to the the longer term engine life due to...

Originally Posted by OVERKILL Originally Posted by Talent_Keyhole LOL, I never said that I did a UOA on that engine in my OP. You repeatedly said the remaining oil in an engine will be diluted by the new oil and is irrelevant. You stated: Originally Posted by Talent_Keyhole The original oil...

Originally Posted by 4WD Originally Posted by PimTac This one has been here before. This should have been locked already first time it got personal … but how is a lab getting oil in tiny bottles from a sump (basic no-no in large fixed engines where we take samples from the cooler line...

Originally Posted by Mad_Hatter A better, more accurate title for this thread would have been "Leftover oil in the engine is bad and should be avoided at any cost...now change my mind" but rather, he trolled everyone by stating his already held belief in the form of a question(s). Some people...

Originally Posted by Schwifty I have been part of auto and motorcycle forums for 35 years. A cherish the days when you could actually debate and exchange information rather than dealing with snowflakes who like to throw around terminology, can't explain what they say, and then have to point to...

Originally Posted by OVERKILL Originally Posted by hallstevenson Originally Posted by Schwifty Wow on forums for 35 years? Interesting seeing that the first web-page was launched in 1991 lol. I'm not defending the arrogant OP in any way, just educating you here.... "forum" does not have to mean...

As long as your used sample is sealed and properly obtained, should not be an issue. Agitate the the oil to mix anything that may have settled and add it to the sample bottle when received. The Cleveland Open Cup Flash Point test by Blackstone does not test for fuel directly. They correlate the...

Originally Posted by PimTac This one has been here before. Still waiting for your evidence to counter my Malarky.

Originally Posted by Mad_Hatter Originally Posted by Talent_Keyhole Perform a second oil change after running the engine up to temp. Simple. Some people do this all the time in their transmissions, sometimes 3-4 times to get rid of most of the old fluid, instead of full fluid exchange by a...

Originally Posted by Mad_Hatter Originally Posted by Talent_Keyhole Wrong again. You can wait a year and that oil will not drain out. Perform a second oil change within a few miles and you will achieve a 98-99% exchange. - you can't be serious, are you? Apparently we've now passed into the...

Originally Posted by Talent_Keyhole Originally Posted by OilUzer Originally Posted by Talent_Keyhole Originally Posted by OilUzer Are you talking about Tribofilms created by Extreme Pressure lubricants such as ZDDP? Please elaborate? My understanding is that according to experts , some...

Originally Posted by OVERKILL Originally Posted by Talent_Keyhole The original oil sump contained 25 ppm iron wear. The new mixture within a few minutes contained 5 ppm iron wear. Actually TBN dropped by 10% along with viscosity. That is not irrelevant. Would you purchase new oil that had 5...

Originally Posted by Linctex Originally Posted by Talent_Keyhole The original oil sump contained 25 ppm iron wear. The new mixture within a few minutes contained 5 ppm iron wear. Actually TBN dropped by 10% along with viscosity. That is not irrelevant. Even still, it is a data sample of...

Originally Posted by Mad_Hatter Originally Posted by Leo99 Originally Posted by Mad_Hatter Originally Posted by PimTac This idea of 20% of old oil left is malarkey. I've always drained the capacity stated out of my vehicles and filled with the same. Granted there is some leftover oil but it's...

Originally Posted by hallstevenson Originally Posted by CR94 Originally Posted by Talent_Keyhole ... Whether it is Walmart or Jiff Lube, leaving up to 20% of used oil of unknown quality should be a concern if your goal is to keep the vehicle for an extended period of time. Unclear what...

Originally Posted by Mad_Hatter Originally Posted by PimTac This idea of 20% of old oil left is malarkey. I've always drained the capacity stated out of my vehicles and filled with the same. Granted there is some leftover oil but it's not even close to 20%. I measure out 5.5qts with every...

Originally Posted by PimTac This idea of 20% of old oil left is malarkey. I've always drained the capacity stated out of my vehicles and filled with the same. Granted there is some leftover oil but it's not even close to 20%. Prove me wrong. Blackstone Labs agrees with me. Oil analysis of my...

Originally Posted by OilUzer Originally Posted by Talent_Keyhole Originally Posted by OilUzer Experts say tribofilm is good and not to worry ... Are you talking about Tribofilms created by Extreme Pressure lubricants such as ZDDP? Please elaborate? My understanding is that according to...