Chuck,
I and my mechanics are in full agreement on the 12-month limit. The
dealership where I bought the latest Volvo suggested that I use
synthetic oil if I were going to change every 12 months, at my low
mileage accumulation rate. I accepted that while they did the work, but
rely on my current independent shop for choice of oil now. They see
cars at all stages of their useful lives, so I think their experience
counts most.
I changed my own oil during my younger days, and saw up close and
personal what drained out of the engine. I suspect that today's engines
run much cleaner, but still feel that oil is the cheapest insurance one
can buy. :-)
Jim Nichols
Tullahoma, TN USA
On 11/19/2013 6:39 PM, Chuck Norcutt wrote:
> My 2012 Chrysler T&C and the 2007 Buick Lucerne which preceded it both
> have a duty cycle oil change indicator. The Buick's would call for
> change at about 9,000 miles. The Chrysler is at about 8,500 and hasn't
> called for a change yet. The Chrysler's manual says that the oil change
> interval should not exceed 10,000 miles of 12 months, whichever comes
> first. The Buick's manual also places a 12 month limit on oil change
> intervals but imposes no maximum mileage limit.
>
> I'm going to get the Chrysler's oil changed next week since I suspect it
> will ultimately call for an oil change while I'm driving to Florida
> unless I get it done before that.
>
> Chuck Norcutt
>
>
> On 11/8/2013 2:12 PM, Jim Nichols wrote:
>> Hi Chris. It has been a long time since I did a lot of driving, but,
>> when I did, I usually followed the manufacturer's mileage
>> recommendation. However, I am leery of some of the long intervals
>> recommended in recent years.
>>
>> Recently, I have spread 3000 to 4000 miles per year over three vehicles,
>> and felt that service once a year was a good compromise. I hope to
>> downsize to two vehicles soon. Regardless of mileage, oil picks up
>> condensation over time, leading to a gradual reduction of lubrication
>> efficiency and an increase in acidity.
>>
>> Jim Nichols
>> Tullahoma, TN USA
--
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