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uberhahn · 05-19-2006, 07:02 AM

Some facts about synthetic oil:
- if you have leaks, synthetic will tend to make them worse
- if your engine is very worn, synthetic will not help much
- if your engine is not worn, synthetic WILL reduce the amount of wear
- synthetic is more expensive
- you may want to consider getting a filter re-locating kit so you could use a larger filter.
- you should be able to extend the OIL changes to 10K, if you change the FILTER every 3-5K (providing it's a bigger filter). This can make up for the extra cost of synth oil.
- it will take several (3-4) oil changes of synthetic to fully "flush" your internals to full synth.

Having said all of this, the move to synth depends on the intent for the vehicle. If you trully intend to keep the vehicle for an additional 100K miles, and if the engine isn't worn (under 100K) currently, then synth may be a good choice.

I have run synthetic oil in all of my vehicles, including my race-cars ('72 Datsun 240z), and will continue to do so.

05-19-2006, 07:02 AM	#4 (permalink)
uberhahn Registered User Join Date: Dec 2004 Posts: 142	Some facts about synthetic oil: - if you have leaks, synthetic will tend to make them worse - if your engine is very worn, synthetic will not help much - if your engine is not worn, synthetic WILL reduce the amount of wear - synthetic is more expensive - you may want to consider getting a filter re-locating kit so you could use a larger filter. - you should be able to extend the OIL changes to 10K, if you change the FILTER every 3-5K (providing it's a bigger filter). This can make up for the extra cost of synth oil. - it will take several (3-4) oil changes of synthetic to fully "flush" your internals to full synth. Having said all of this, the move to synth depends on the intent for the vehicle. If you trully intend to keep the vehicle for an additional 100K miles, and if the engine isn't worn (under 100K) currently, then synth may be a good choice. I have run synthetic oil in all of my vehicles, including my race-cars ('72 Datsun 240z), and will continue to do so. __________________ Gettin' out, for now...