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Maintenance & Repair Synthetic motor oil
8536 messages, Last post on Nov 21, 2009 at 9:34 AM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
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Replying to: ruking1 (Jul 27, 2009 6:53 am) |
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OK, lets say you are an oil change fanatic and change your conventional oil every 3000 miles. (Yeah, I know you think that's too often but let's keep on track) How often would you change a full synthetic to keep your fanatic level the same?
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Replying to: oldfarmer50 (Aug 04, 2009 2:20 pm) I'd fit your profile. I've always done 3K w/conventional, but in the last year have started using syn  5K. Oil and filters are just soo cheap comparatively speaking, there's really no need to risk long OCI's.
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Replying to: kiawah (Aug 04, 2009 3:38 pm)  As a non fanatic, as long as we are not talking about cars with turbos or anything, I figure 5000 miles is good for conventional and 10K for synthetic. |
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| 10K sounds about right to me. I've always suspected that the bet is safer if you are using diester or polyol ester base synthetic. | |
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Tend to agree with you on these mileage figures...synthetic is supposed to be so good that a longer interval time surly makes sense. My local mechanic has synthetic for $44.00 which sounds pretty good and he's encouraged me to do it. That would be a once a year change interval for me since I probably won't even hit 4.5k miles driven on my car this year. My spinal issues have made me cut back on almost all non essential driving so I do it mainly to get to work and see my doctor monthly. Other family members have been doing all the other driving chores for me, which is turning out to be a great thing. Just don't feel the love of driving anymore  . The Sandman  
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Replying to: kiawah (Aug 04, 2009 3:38 pm) |
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| I change my oil once a year. I have been doing this for over 20 years and have never had an engine problem. I drive about 20k per year. I always pull a sample of oil and send it to Oil Analyzers to see if it did need to be changed or if I'm having a problem with my engine. I use only Amsoil with an Amsoil oil filter. Why waste good oil if what your putting in is no better than what your draining out. | |
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Aren't there two driving conditions covered by Owner's Manuals?: 1.) normal, ie. trips that are longer than just a short trips and relatively minimal stops - requiring longer OCI; 2:) severe -short trips with many stops, requiring OCI closer to the normal and traditional 3,000 miles/5,000 kms or three months - whichever comes first. Oil analysis for less than 14 quarts is not cost effective but can show information about the engine that would be useful for detecting deficiencies invisible any other way. The 7,500 - (6 months), 25,000 and even 35,000 (one year) options with the above mention brand shows what protection is offered but you still need to be sensible about the how long you go before an oil change/oil analysis.
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