quote:
Originally posted by Drew99GT:
Long dran intervals are nice and all, but just don't work when you drive 3 miles to work and back every day in 15 degree weather.
Why not? The "Aunt Minnie" test shows that short trips over long intervals are A-OK with some oils. Do a search here & you'll find threads like
this. (I'll let you know how how my own "Uncle Wiggly" test goes when I'm done with it. I'm in Northern Colorado & I put in 4qts of M1 15W-50 in my '90 2.0L 4cyl on 02.Oct.02. I'm running it for 10k miles, but on my current short-trip schedule it's going to take me a full 2yrs to finish my test. I'll probably change the filter at 5k/1yr, & then run a single UOA when I change the oil at 10k/2yrs. Oh, & I'll probably top up with M1 10W-30, since I've got it on-hand & haven't been convinced to buy more 15W-50.)
quote:
Originally posted by Pluto5:
Tend to agree with ZAM--few people are going to pay for even one oil analysis, let alone several to establish a baseline for future changes.
quote:
Originally posted by RobZ71LM7:
Another thing to consider is how much analysis's cost. Many people analyze so frequently that they could change their oil once or twice for the cost of the analysis. Blackstone was $18.50 but I believe they now want $20 and it's $30 if you get Terry to comment on it. I myself prefer to just analyze it to check once a year or so. Of course for some people running an analysis is a hobby.
I agree that analysis doesn't make sense from a purely cost-effective standpoint. If that's how you view oil changes, then this site is a goldmine! You get to see a
huge cross-section of UOAs (& VOAs) & can make informed choices based on that data. The alternative is, "My buddy really likes this Hyper-Slik oil!" At some point, you may even decide you actually
want to know what's going on inside your engine, & that data will help someone else.
quote:
Originally posted by Patman:
While it is true, 3k oil changes with any SL rated oil of the recommended viscosity will get most people a longer engine life than they need (in other words they'll sell the car or get bored with it long before it's engine wears out)
However some of us here simply do not want to do 3k changes, or we simply enjoy knowing that our engines are getting an oil that gives them the lowest possible wear numbers (or reasonably close on their budget)
And there is a big sense of accomplishment when we get to post a UOA on an oil that shows it to have virtually no wear on the engine.
Patman summarizes my reason for exchanging info on this site. With only one car for 10yrs, 3k mile changes were not a problem (only 2 or 3 changes a year!) & I never gave it a second thought. But as soon as I got a second car & started commuting 65mi/day, I had to find an alternative, quick! Instead of 2 or 3 changes a year, I was doing 10 to 12 a year!! That's a huge amount of money, oil & time down the drain. Now I'm a fanatic about long drain intervals. I don't plan on running UOAs forever, but for now they can help me establish interval periods that make the best use of my time, money, & resources.