Keep the engine clean. Amazing huh? If you look at the thread with people that had 200k + miles on there cars using dino, they changed the oil at reasonable intervals. Reasonable being 3-5k with dino, up to 15k synthetic.
I wouldn't even consider or worry about taking an oil out past 15k miles. Why? Oil is cheap. Leave 20k + mile drains for fleets. Too much time is spent on here comparing miniscule differences in wear among oils when dirt and carbon build up will bog down your engine much faster then wear will...
A good synthetic oil changed at levels up to 10k miles and or using Tooslicks great interval calculator should ensure you that Auto-Rx isn't ever needed. UOA's best use, IMO, is the state or condition of the oil and it's ability to pick up on things like anti-freeze etc. Thoughts..agree, disagree? I'm open for debate.
I'm sure now that I've revealed this amazing secret, you will all sleep better. I mean for the past 2yrs I've been having nightmares about Mobil 1 showing 6ppm of Pb vs 5ppm with Amsoil. How can I reduce this so my engine won't wear out?
[ March 24, 2004, 08:11 PM: Message edited by: buster ]
I wouldn't even consider or worry about taking an oil out past 15k miles. Why? Oil is cheap. Leave 20k + mile drains for fleets. Too much time is spent on here comparing miniscule differences in wear among oils when dirt and carbon build up will bog down your engine much faster then wear will...
A good synthetic oil changed at levels up to 10k miles and or using Tooslicks great interval calculator should ensure you that Auto-Rx isn't ever needed. UOA's best use, IMO, is the state or condition of the oil and it's ability to pick up on things like anti-freeze etc. Thoughts..agree, disagree? I'm open for debate.


[ March 24, 2004, 08:11 PM: Message edited by: buster ]