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Old 06-28-2012, 04:05 PM   #11
RedComet
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Quote:
Originally Posted by Rememo View Post
When I had my Ranger (4.0, V6, 4X4), I was using Mobil 1 and Purolator filters.

At around 50,000 miles I decided to use Blackstone Labs for some oil tests.

I sent in a sample with 6000 miles on it, and they reported back that the oil was fine.

I sent another sample at 8000 miles, and they reported that the oil was just starting to show signs of wear.

I sent yet another sample at 10,000 miles, and they reported that the oil was near the end of its life, but still good.

I chickened out at that point, but you get the idea.

That being said, every engine is different. While I believe 3000 miles it TOTAL overkill, especially when using a synthetic oil, you can never really be sure of how your engine will treat the oil unless you have the oil tested for life span at least once.
I was about to post a link to Blackstone and how I knew someone on IWSTI who went through the same process as you and concluded about 9k miles on full synthetic 5W-30 (Actually, it might have been the infamous German Castrol 0W-30) was the sweet spot for his STi.

Thanks for posting about having an oil analysis done, it's something that's just plain smart. :)
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Old 06-28-2012, 04:16 PM   #12
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Quote:
Originally Posted by zx3matt View Post
It is cheap insurance.
Cheap .... and completely unnecessary .....

Why not change your coolant every 5000 miles too ??? Answer .... It's not necessary. You can believe you're doing your engine a favor by changing oil at 3000 and 5000, ESPECIALLY synthetic at 3000 ... but all you're really doing is wasting money. But it's YOUR money .... so go for it.

I prefer a more scientific approach, like using oil analysis.


REV
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Old 06-28-2012, 04:45 PM   #13
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Quote:
Originally Posted by revhigh View Post
Cheap .... and completely unnecessary .....

Why not change your coolant every 5000 miles too ??? Answer .... It's not necessary. You can believe you're doing your engine a favor by changing oil at 3000 and 5000, ESPECIALLY synthetic at 3000 ... but all you're really doing is wasting money. But it's YOUR money .... so go for it.

I prefer a more scientific approach, like using oil analysis.


REV
Oil that changes from its original happy golden color gets changed. 3k miles till I die, full synth too.
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Old 06-28-2012, 04:47 PM   #14
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i did my first oil change at 11K, still came out clean.
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Old 06-28-2012, 04:50 PM   #15
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Oil Changes are a good way to keep a vehicle regularly inspected and maintained for things you may not normally consider unless you were already changing the oil.

I don't know about anyone else, but when my car is on jack stands and the oil is draining, I check all other parts of the car for wear and tear. Spark plugs, air filter, suspension bushings, hose condition, coolant levels, top off the windshield washer fluid, etc, stuff I wouldn't normally do if I wasn't already in the garage with the car in the air.
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Old 06-28-2012, 05:03 PM   #16
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I am going to change the oil in my focus every 5000 miles. That is because the dealer I purchased the car at gives free oil changes as long as you own the vehicle every 5k miles.

If I were paying for them myself I would probably just follow Ford's recommended schedule.
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Old 06-28-2012, 05:10 PM   #17
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the dealer I purchased the car at gives free oil changes as long as you own the vehicle every 5k miles.
So, you only have to own the vehicle every 5,000 miles?
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Old 06-28-2012, 05:11 PM   #18
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Quote:
Originally Posted by revhigh View Post
Cheap .... and completely unnecessary .....

Why not change your coolant every 5000 miles too ??? Answer .... It's not necessary. You can believe you're doing your engine a favor by changing oil at 3000 and 5000, ESPECIALLY synthetic at 3000 ... but all you're really doing is wasting money. But it's YOUR money .... so go for it.

I prefer a more scientific approach, like using oil analysis.


REV

Analyze all you want. Just extra money wasted when you could just change your oil more often and know you are safe.

I am not trying to start a fight, I just do not see what the fuss is all about.

I rebuild and BUILD engines and transmissions regularly. It is a hobby, but I do it a lot for myself and others. I have seen wear that could have been prevented with obsessive, or heck even regular, maintenance. I've seen blocks, cranks, etc become expensive anchors because someone was cheap or lazy.

Ive see the oil analysis people do, and I get it, but why do that just to see how long you can go? The analysis was originally meant to tell you if you had a good oil as well as how well your engine is wearing or breaking in. It was like getting a code scan, or heck even a dyno. To answer how are things? Now people have turned it into this contest to see if their oil will last longer. Blackstone should be ashamed. They are capitalizing on this fad when really the analysis is a tool...
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Old 06-28-2012, 05:13 PM   #19
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Quote:
Originally Posted by mac.mogul View Post
Oil Changes are a good way to keep a vehicle regularly inspected and maintained for things you may not normally consider unless you were already changing the oil.

I don't know about anyone else, but when my car is on jack stands and the oil is draining, I check all other parts of the car for wear and tear. Spark plugs, air filter, suspension bushings, hose condition, coolant levels, top off the windshield washer fluid, etc, stuff I wouldn't normally do if I wasn't already in the garage with the car in the air.
Exactly. Good point. Why wait 10000 miles to do that because you stretching your oil to the limit.
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Old 06-28-2012, 05:16 PM   #20
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This is just as full of arguments as the regular gas vs premium gas debate.

I use a secret system developed by Nasa in conjunction with Stephen Hawking and Homeland Security to calculate when to change my oil.
The calculations take a few hours on a supercomputer, but it is all worth it.
(I can sneak the time free, so that is covered)

After i drain the oil, it is sent by special courier service to a secret lab in area 51 where it is bombarded with a high intesity cosmic ray source from the alien spaceship. Then sent to a 3 mile deep shaft where it is studied for signs of alien intelligence.
After that it is fed to gerbils.
So far only two of the gerbils have started speaking in Aramaic.. but it looks very promising.
I can say no more.
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