90,000 miles -Synthetic Oil?

[Kevin Clinton]

Doyt

Thanks for the advice

Yeah my lifters are somewhat noisy.  The only time I recall my oil looking =
really lousy was after I put in something which was suppose to help the inj=
ectors - stuff came out real black and ugly.  Otherwise the oil changes loo=
k pretty normal.

Kevin

--- "Doyt W. Echelberger" <Doyt at NWOnline.Net> wrote:
>Couple of additional thoughts.....
>
>Estimating sludge build-up:
>
>IF the oil 'looks pretty good' when you change it, and isn't black, thin
>and ropey, AND you don't have any leaks or seepage with the dinosaur oil,
>THEN there is a lower chance of  sludge being around the seals and you can
>probably switch to synthetic without negative consequences.
>
>Also, as an arguement for staying with the dino..........If your lifters
>are quiet, and the dino oil is doing the job, AND you don't drive it hard
>or often, THEN changing it 4 times a year is a good protocol, and dino is a
>cost effective solution by 400% compared to Mobil 1.
>
>The only reason I can see for switching to Mobil 1 is to get the varnish
>out of the lifters and keep them really clean.
>
>SO.....are the lifters noisy?
>
>Answer: "YES, the lifters are noisy".........take the leakage risk and go
>to synthetic. The synthetics will clean up your lifters and quiet them
>down.  It will also clean up all your seals and gaskets and they might seep
>a little bit or even leak.
>
>Answer: "NO, the lifters are not noisy"..........don't see any reason to
>take the risk of seepage/leakage. You don't drive the car hard and hot,
>where synthetics would keep you out of the oil breakdown zone.
>
>Maybe that will help you decide.
>
>Doyt
>
>
>
> >>>>>>>>>>>>>>>>>>>>>>>>
>At 01:44 PM 1/29/2003 -0800, you wrote:
>>Doyt
>>
>>Thanks for the response.  Still uncertain whether I will make the change.
>>
>>Most of the 90,000 miles on the 200 were freeway driving between Portland
>>and Seattle - but for the last few years don't put very many miles on the
>>car.  We warm the car up for a few minutes before it gets out on the road
>>and I change the oil every three months =3D the oil always looks pretty g=
ood
>>when I change.  Not certain how to determine how much sludge has been bui=
lt up?
>>
>>Kevin

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