How long do you go between oil changes?

[Dargo]

I do miss the smell of that castor based oil in my old BSA flat tracker.

What is Klotz Benoil (not sure on the spelling made from? I used to use it way back when I raced motocross. I recall that smell very well. I know it sounds odd, but I really liked that smell.

 

[MikePA]

I guess the 'ideal' would be to run UOA on every unit before every oil change to make your decisions to change fluids only when needed, but that's clearly a bit less than a logical or reasonable option

'a less than logical or reasonable option' is an understatement for anyone who doesn't go through gallons of oil at each change, which are the vast majority of people both on TBN and in the general population.

A 'quick and dirty' cost analysis shows why this is not only 'a less than logical or reasonable option' it's a no brainer for most people to change oil based on time and/or mileage.

A Blackstone oil analysis costs $22.50 - Click Here

A gallon of Delvac at Autozone costs $12.99 - Click Here

Let's see, spend $22.50 to determine if I have to change the oil or $17.99 (oil and filter) and simply change the oil. As I said, for most people, it's an economic no brainer.

 

[Duffster]

I change my oil in my 7.3 PSD's every 10-12k miles. I use Rotella dino 15w-40 and sometimes JD 50, typically a NAPA filter.

My trips range from going up the street 3 blocks to get a pizza to extended highway trips to plowing snow and not shutting off for 60+ hours.

About equal parts city miles, highway miles, snowplowing hours and trailer pulling miles up to 18k pounds.

My UOA's consist of a visual inspection of the oil in the bucket.

Right wrong or otherwise that is how I roll.

 

[Crash101]

Dodge/Cummins gets changed at 7500 miles, BMW Z4 gets it's synthetic changed also at 7500. Hyundai Genesis 3.8 sedan will get it at 5000 mile intervals, until I change it over to synthetic, then it will also be at 7500. Tractor is done in accordance with the owners manual.

 

[Dargo]

Hyundai Genesis 3.8 sedan will get it at 5000 mile intervals, until I change it over to synthetic, then it will also be at 7500.

Sorry for the departure from oil change intervals in specific, but I'm curious as to how you like your Genesis. I've heard that they are just plain amazing and a particularly good value.

 

[GreenLawnFarm]

every 3000

 

[irvingj]

Used to do it every 3000, but now go to 5000 on gas-engined cars.

VW TDI requires their SPECIAL oil ($$- VW Spec 505.01), but interval is 10,000.

 

[Crash101]

Sorry for the departure from oil change intervals in specific, but I'm curious as to how you like your Genesis. I've heard that they are just plain amazing and a particularly good value.

Had it since last September, wife drives it mostly, but every time I get in it I'm blown away by the overall quality, features, comfort and performance. I sure wish GM, Ford or Chrysler could build something like it and be able to sell it for what a working person can afford.
As far as oil changes, I had the first one done at 5000 miles (dealer supplied), but I'll change over to synthetic for the next one. I still may take it to the dealer (if their not too $$$) It might make it easier to prove oil change intervals if I need to for warranty issues if that should come up later.

 

[FlaDon]

GM dealer up north says 5K. Down here, 3K. I split the diff and do it at 4K. Manual says the oil sentry will tell you sometime between 3 and 10K that it needs changed on regular oil.

 

[scoutcub]

06 F350 PSD, Amsoil, every 10K. Have been considering lowering interval to 5K due to "mostly" medium/heavy towing.....we'll see how it looks next oil change. Been Ok thus far, but new trailer alone weighs #3000 more than old one.....