Extended OCI is so Hard!!!

[Mrsandman]

Originally Posted By: Dallas69
3000 mile oil changes are an old obsolete way.
Oils are much better now than 15-20 years ago when 3k was the time to change the oil.
You are new here so read up on the different oil info available here.
Rule of thumb:
Conventional oil-5000 miles
Synthetic oil-10000 to 15000 miles
I grew up on 3 months or 3000 miles but have since learned alot
ill do that. Ill have to learn to navigate around this sight.

 

[Merkava_4]

Originally Posted By: camrydriver111
What about guys who go over 15k and have a UOA to prove it?


Does the UOA show all the varnish accumulation and other filthy grime in the engine?

It's threads like this that make me want to run out and change my oil.

 

[Joe90_guy]

1) Changing your oil at 5000 miles is like buying a decent bottle of wine, drinking a couple of glasses and then pouring the rest down the sink...
2) Oil is meant to turn black. If you go to a really posh restaurant and had a really well presented meal, you wouldn't expect it to 're-emerge' the next day looking quite so beautiful would you?

 

[Merkava_4]

Originally Posted By: Joe90_guy
2) Oil is meant to turn black.


In your car it is. Not mine.

 

[Joe90_guy]

Please, just spare a thought for all those antioxidants, detergents and dispersants having to live an utterly pointless existence...

 

[Joe90_guy]

I have a dream...that one day...oils of all viscosity grades...conventional and synthetic...will be judged, not by the colour of the dipstick at 5000 miles...but by the content of their additive package...

 

[KrisZ]

I'm sticking to 5k miles OCI on dino, which is specked by Mazda, or 6 months, which isn't specked by Mazda.
I picked 6 months because even if I don't hit 5k miles on oil, I will have fresh oil just before the winter and will dump winter's oil sometime around spring.

 

[CarbonSteel]

Originally Posted By: Merkava_4
Originally Posted By: camrydriver111
What about guys who go over 15k and have a UOA to prove it?
Does the UOA show all the varnish accumulation and other filthy grime in the engine?
Why do you as-su-me there is varnish and grime in the engine simply due to an extended OCI?