02-26-2012, 07:38 PM
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#11 (permalink)
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...beats walking...
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...GM's Oil Life Monitor (OLM) starts out with a 20,000-mile "guess" assuming the use of their dexos1™ synth-blend 5W/30, and then 'shortens' that number for cold-starts, idling and slow-speed city driving.
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02-26-2012, 08:27 PM
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#12 (permalink)
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EcoModding Lurker
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Analysis
Quote:
Originally Posted by Ryland
Seems like a perfect case to get an oil analysis done, after all you don't want water condensing in your oil or the oil becoming acidic or diluted with fuel.
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Does anyone know where to get a legit analysis done? I guess there are a lot of scammers out there... Also, how much would it cost?
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02-26-2012, 11:25 PM
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#13 (permalink)
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Master EcoModder
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I change my engine oil; 5w30 synthetic, every January regardless of distance, usualy 32000km - 36000km per year. The car now has aprox 125000km on the odometer.
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02-27-2012, 12:45 AM
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#14 (permalink)
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Master EcoModder
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Maybe I'm not too scientific, but couldn't just READING the dip stick color help a lot?
If it starts to look pretty gross, change it.
I fully realize that a lot of diesels dipsticks seem to turn black in no time, but for gas
motors; it would seem the visual would help.
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06 Chev MonteC JG#24tribute car 30mpg 00 Honda Insight 63MPG 98 Buick Park Ave3.8 33MPG 89 Toyota Corolla wag 60MPG so far 81 VW Rabbit diesel pu 50MPG+ 80 Mercedes 240D stick 30-ish 90 vette 6-speed,29ish 07 Honda ST1300 55MPG 83 Honda 650 GL 64MPG 19 Suzuki dr200 88MPG23 HondaGrom?+Tow K10D Sub 26mpg NEVER,NEVER GIVE UP!
PUMP THOSE TIRES UP!
DRIVE IN YOUR SOCKS FOR SENSITIVITY!!!!!!!!!!!!!!!
SLOW DOWN AND SMOOTH UP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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02-27-2012, 12:52 AM
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#15 (permalink)
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Some (many?) say you can't go by dipstick color... but I do. If it's honey colored and has no evidence of milky condensation or gritty contamination, I say it's good to keep going and I don't give a crap how long it's been in there. It ain't milk after all.
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02-27-2012, 01:30 AM
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#16 (permalink)
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Master EcoModder
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I use a company called BLACKSTONE.
they are about $25-35
They will send you a little sample collection bottle and mailer for free.
nice people
http://www.blackstone-labs.com/
ps. here is a report from 189000miles. I currently have 255000miles
Last edited by mcrews; 02-27-2012 at 01:35 AM..
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02-27-2012, 06:23 PM
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#17 (permalink)
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...beats walking...
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Quote:
Originally Posted by larrybuck
Maybe I'm not too scientific, but couldn't just READING the dip stick color help a lot?
If it starts to look pretty gross, change it.
I fully realize that a lot of diesels dipsticks seem to turn black in no time, but for gas
motors; it would seem the visual would help.
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...well, that's sorta like looking at a glass of yellowish liquid and visually determining that it's actually ice-tea or beer and not a urine-sample... you gonna try it?
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02-27-2012, 06:28 PM
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#18 (permalink)
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Master EcoModder
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Quote:
Originally Posted by Old Tele man
...well, that's sorta like looking at a glass of yellowish liquid and visually determining that it's actually ice-tea or beer and not a urine-sample...you gonna try it?
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First ...that's wat TOOOO visual!!!
second.... '......or cheap white vine?'
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02-27-2012, 07:59 PM
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#19 (permalink)
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Master EcoModder
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The only recommendation for 3K oil changes comes from people who are asking you to pay for it.
I agree that an analysis is the best course of action for you. Your extremely low annual mileage and frequent cold starts will cause a shorter useful oil life (in k's or miles) which makes you a bit of an exception. Only analysis will be able to tell you the appropriate interval.
Other factors to consider are, if the vehicle sits in a garage, carport or in the weather. Does it get an occasional long distance drive to boil out water and gasoline from the oil?
My guess, and that's all it is, is to just change it annually.
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02-27-2012, 09:30 PM
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#20 (permalink)
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EcoModding Lurker
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i have a very short commute to work each day,and change the oil in my tracker once a year. i use synthetic oil. my saturn has a change oil soon light. comes on every 5-6 thousand miles,thats when i change it.
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