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Fox-Body Cobras
179 mile 93 on ebay
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<blockquote data-quote="Robert M" data-source="post: 5741888" data-attributes="member: 9628"><p>Hummm, I have 5 cobras, two of which have under 500 original miles right now. The 93 and 00R currently have their original oil and filter in place. Just as a routine I check the oils any time these vehicles are moved. No sign of sludge at all on the dipstick, infact the oil looks and feels as new. As far as I know, usually, if there is a sludge issue, at least the oil will begin to discolor?? Is this not true? Since you guys brought this up, I even looked in the valve cover oil fill with a flashlight, no sludge there either, usually this area and the intake valley are the sludge collectors. Are you sure that you are not thinking of short trips that would have put plenty more miles over 14 years, not only 179? Yes short trips do cause oil to sludge, but 179 miles over 14 years?</p><p></p><p>My experience in the past with engines and sludge have had significantly more miles on them to start with and the oil changes were not as often as recommended for their use/miles. I also have noticed that engine with sludge issues also seem to have a tell-tail sign of oil stain above the oil level on the dipstick itself. This stain is very hard to remove and most times it will not come off. My sticks look as they would on a new car, no stain. I have a feeling you would find this 179 mile Cobra to be the same way. </p><p></p><p>I think a very large sludge factor is the brand and quality of oil used, along with the miles and usage of the vehicle.</p><p></p><p>I have a feeling that the owner of this Cobra is like me, even if I do not take the car(s) out for a drive often, the car(s) still get started regularly and run to operating temperature for full oil circulation/lubrication in the engine.<<But in this case, miles do not accumulate on the odometer. The rest of the drivetrain gets lubricated when the car is driven which can be a very short distance. It does not take many revolutions to lube the trans. and diff. gears and if I remember correctly the rear wheel bearings are sealed.<<I think? aren't they?</p><p></p><p>--------------------------</p><p></p><p>I just went to the "Engine Oil Bible" site to read more about engine oils and shelf life. The main concern I see is the storage evironment in which the oil is stored and 'heat" as I had mentioned at the beginning of this thread. Heat, especially excessive heat as mentioned on this site as the main issue, and the oxidation of the oil that follows. It also mentioned discoloration s it oxidizes. The person on that site says that keeping oil and using it later is usually not good (beyond about 3 years) because the vehicle that you are about to pure it into, probably has different oil specs./standards that the 3+ year old oil you have in your hand.<<This would not be the case with this 179 mile Cobra, it has the exact Ford spec. oil recomended for it in 1993.</p><p></p><p>--------------------------</p><p></p><p>But to be honest, I am slowly working all of my cars toward newer oil techology, synthetic blend at first, and then maybe full synthetic. It is costly! </p><p></p><p>R</p></blockquote><p></p>
[QUOTE="Robert M, post: 5741888, member: 9628"] Hummm, I have 5 cobras, two of which have under 500 original miles right now. The 93 and 00R currently have their original oil and filter in place. Just as a routine I check the oils any time these vehicles are moved. No sign of sludge at all on the dipstick, infact the oil looks and feels as new. As far as I know, usually, if there is a sludge issue, at least the oil will begin to discolor?? Is this not true? Since you guys brought this up, I even looked in the valve cover oil fill with a flashlight, no sludge there either, usually this area and the intake valley are the sludge collectors. Are you sure that you are not thinking of short trips that would have put plenty more miles over 14 years, not only 179? Yes short trips do cause oil to sludge, but 179 miles over 14 years? My experience in the past with engines and sludge have had significantly more miles on them to start with and the oil changes were not as often as recommended for their use/miles. I also have noticed that engine with sludge issues also seem to have a tell-tail sign of oil stain above the oil level on the dipstick itself. This stain is very hard to remove and most times it will not come off. My sticks look as they would on a new car, no stain. I have a feeling you would find this 179 mile Cobra to be the same way. I think a very large sludge factor is the brand and quality of oil used, along with the miles and usage of the vehicle. I have a feeling that the owner of this Cobra is like me, even if I do not take the car(s) out for a drive often, the car(s) still get started regularly and run to operating temperature for full oil circulation/lubrication in the engine.<<But in this case, miles do not accumulate on the odometer. The rest of the drivetrain gets lubricated when the car is driven which can be a very short distance. It does not take many revolutions to lube the trans. and diff. gears and if I remember correctly the rear wheel bearings are sealed.<<I think? aren't they? -------------------------- I just went to the "Engine Oil Bible" site to read more about engine oils and shelf life. The main concern I see is the storage evironment in which the oil is stored and 'heat" as I had mentioned at the beginning of this thread. Heat, especially excessive heat as mentioned on this site as the main issue, and the oxidation of the oil that follows. It also mentioned discoloration s it oxidizes. The person on that site says that keeping oil and using it later is usually not good (beyond about 3 years) because the vehicle that you are about to pure it into, probably has different oil specs./standards that the 3+ year old oil you have in your hand.<<This would not be the case with this 179 mile Cobra, it has the exact Ford spec. oil recomended for it in 1993. -------------------------- But to be honest, I am slowly working all of my cars toward newer oil techology, synthetic blend at first, and then maybe full synthetic. It is costly! R [/QUOTE]
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