Quandry.....Synthetic oil, or not? For cars

Discussion in 'General Discussion' started by Bonnie, Oct 14, 2004.

  1. Bonnie
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    Bonnie Senior Member

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    What's the consensus on this? Benefits, pitfalls etc..?
     
  2. dmp
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    dmp Senior Member

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    No pitfalls...if you can afford the extra money, Use Mobil1 Synth. More importantly, your filter. At ALL costs, stay away from Fram products. :)

    They suck.
     
  3. dmp
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    dmp Senior Member

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    but - a synth w/ a good filter will go 6000 miles :) that's half as many oil changes ;) :)
     
  4. Bonnie
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    Bonnie Senior Member

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    Laughing....I might be one of those people who for the most part remembers to change my oil every 3000 miles but occasionally forgets and does go over 5000 :(
    Im not worried about the cost difference, I just want to protect my engine. I had heard that once you start using synthetic it's best to stay with it, is that true?
     
  5. Bonnie
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    Bonnie Senior Member

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    So synthetic but no Fram filters?
     
  6. dmp
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    dmp Senior Member

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    Good reading...here's the bottom line:

    http://www.scuderiaciriani.com/rx7/oil_filter_study/
     
  7. Bonnie
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    Bonnie Senior Member

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    Thank you guys....Im going to take the advice to heart!
    Synthetic it is ;)
     
  8. Merlin1047
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    Merlin1047 Senior Member

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    Consumer's Report magazine did a study on the relative merits of regular versus synthetic oil some years ago (6 to eight years). They tested several engines to 100,00 miles and came to the conclusion that under most normal applications such as in an automobile, synthetic oil is a complete waste of money. They found that synthetic oil did not perform demonstrably better if a routine maintenance schedule was observed. That means changing the oil and filter at the manufacturer's prescribed intervals.

    Synthetic oil does have an advantage when used in a high temperature environment such as in air-cooled engines. Synthetics retained their viscosity longer than normal oil and tended to be less prone to burning or breakdown when subjected to high temperatures. I use synthetic oil in the generator on the motor home because that engine is air-cooled. Also on the lawn mower, chain saw, weed trimmer - anything that runs at very high temperatures. I've used regular oil in every motor vehicle engine I've ever owned and had no lubrication related problems - ever.

    Basically, if you put synthetic oil into a water-cooled automobile engine you're spending three to five times more than you should and the increase in protection is insignificant.
     
  9. dmp
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    dmp Senior Member

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    ...except for the fact sythetics today go for 6-10K miles between changes...and protect better than dino, there's little difference ;) :)
     
  10. Merlin1047
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    Merlin1047 Senior Member

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    Perhaps, but driving beyond the recommended oil change interval may void your warranty (if that is an issue). Also, running that long without changing the oil tends to cause an accumulation of particulate matter. That is ultimately what causes the most damaging wear to an engine. No oil, regardless of how slick it may be, can perform its function once it has become contaminated.
     

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