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Old 03-25-2012, 09:20 AM
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Fishy Fishy is offline
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I do 5000-6000 with M1. Twice a year for me. Walmart has a cage and tanks for oil disposal. I use the 5qt M1 conainers for transporting used oil back to Wally too.
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Old 03-25-2012, 10:09 AM
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Air Randy Air Randy is offline
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For you guys running the newer vehicles and synthetic oil, I think you're wasting money changing at 5K miles. I run dino 15W-40 in my diesel (and they are dirty) and then I do oil tests via Blackstone. I can routinely run 10K on the diesel and the oil reports show that the particulates are low and all of the oil additives are still at about 50% of fresh oil, well within tolerances.

I do change the oil once a year in the 40 simply because it doesn't get that many miles on it.

I use Valvoline 5W-40 Synthetic in the Porsche and also do oil analysis on it. The report shows I could easily go to 15K with my driving profile (lots of hwy, very little city) and still be safe.

You should do a Blackstone analysis next time you change your oil to baseline where your engine is at. Then if you change your oil again at 5K and the report says you could go to 10K or 12K you will know you are safe to go longer. It will also tell you what kind of shape the engine internals are in using base metal analysis, etc. It's $25 to get the analysis done. Once you've done the initial baseline then you only need to do the analysis every 2nd or 3rd oil change to track engine wear.

My most recent oil analysis is attached if you want to see the type of info you get back.
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Old 03-25-2012, 10:24 AM
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I change the oil in the 80 about every 10k. I run the rotella t6 syn 5/40. Used oil goes to the transfer station in fort collins (since estes park is in larimer county). Super nice there, I just drain the oil from the cruiser into a 5 gallon bucket, when its full, take the bucket, empty and repeat.
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Old 03-25-2012, 11:33 AM
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Red_Chili Red_Chili is offline
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1x/yr. with Valvoline Synpower in the Chili. That's not that many miles but it does start getting a bit dirty. Probably overkill.

5K miles in the 97 4Runner, dino oil. I do a lot of short trips to the bus stop, coupled with longer highway miles and little stop and go otherwise. Coincidentally my mileage has gone up as a result, 19-20mpg (new spark plugs helped... ).

Homer bucket for the used oil. O'Reilly's or wherever.
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Old 03-25-2012, 11:59 AM
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I have a small inventory of Mobil1 5w30 5qt. jugs that I use for used oil, also what gets dumped into our vehicles 2x per year, which is usually 4-6k miles. Those are $26 at Walmart ($36 at Advanced Auto). And I use 90915-20004 oil filters! Highly recommend them.
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Old 03-25-2012, 12:11 PM
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Caribou Sandstorm Caribou Sandstorm is offline
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I have been going to a Toyota dealership for oil, so fast and they always have a coupon, for 25.00 or less.

Nice thing is with the Toyota Owners website, it gets recorded.

Not Syn, though just the regular stuff.
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Old 03-25-2012, 12:13 PM
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Inukshuk Inukshuk is offline
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I used to do it every 3-5k, Mobil 1 10-30. On my new rebuild I have been advised to go 10K using synthetic (Mobil 1 now, will go to Rotella when my Mobil 1 runs out) and C-dan synthetic Toyota oil filter. 10K probably means annually for me. I used to be one of those every 2,500 mile guys and my 1983 Subaru did last till I sold it at 180,000, but that was dino oil and a whole different era.
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Old 03-25-2012, 12:55 PM
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DaveInDenver DaveInDenver is offline
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Originally Posted by wesintl View Post
3k is a waste of money IMHO. esp at 8 qt's a pop. Most of my stuff is 5-7500 min
Prolly true in a Cruiser. I figure on account of the 22R only circulates 4.5 quarts with the medium sized Denso filter and 3K is easy to remember since I change on the '3's, e.g 243K, 246K, 249K, so technically every 3rd change is 4K miles. It ain't rocket surgery. I also just use plain old Castrol GTX 10W30 that I buy in bulk when it's on sale (e.g. I'm technically investing in oil futures at the same time). The only downside to changing too often is the cost.
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Old 03-25-2012, 05:47 PM
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Default Rotella

One comment on Rotella, I used Rotella 15/40 in my Dodge Diesel for 100,000 miles. When I had the valves adjusted by a top-notch diesel shop here, the owner showed me the valve train. It was covered in sludge. He said this is common for Rotella and advised a switch to Valvoline Premium Blue. I did that about 30k ago. Runnin good. T
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Old 03-25-2012, 06:20 PM
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Corbet Corbet is offline
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80 series: M1 5w40 diesel truck, 8-10K between changes
Subaru Outback XT(turbo): M1 5w30 extended performance, 8-10K, went 15K once.

I've never done a Blackstone report. Dump at O'Reilly's. (generally where I buy the oil too) They run sales on the gallon M1 jugs regularly and they are the only ones in town with the 5w40 in stock.
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