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May be more harm than good (+)
Posted by Vlad (more from Vlad) on Thu, 19 Jun 2003 10:57:30
In Reply to: $140 Engine Flush and Converting to Synthetic, Shallas, Thu, 19 Jun 2003 08:47:02
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If you've got a serious sludge problem, this procedure will not be able to help anyway. You will need to drop the pan and mechanically remove all the sludge, even after running the machine.
If you have slight accumulation of sludge, running a flush using a machine may get rid of it. However, you run a significant risk of getting solids into places where they should not be. It is somewhat risky.
There is a product called Auto-RX that some people endorse as helpful in cleaning engines gently. I have not used it myself and I am still quite sceptical. However, you can decide for yourself. Check out bobistheoilguy.com forums for discussions and auto-rx.com for marketing info.
A good synthetic oil may also do a lot of gentle cleaning on its own. Especially a diesel oil, such as Delvac 1. However, switching to synthetic at your mileage may lead to seal leaks. If you plan on keeping the car for a long time, then go for it. You will need to replace those seals eventually anyway, even if you continue using mineral based oil. On the other hand, if you are not sure how long you will keep it, continue using a quality non-synthetic, preferably xW-40. Most SL-rated synthetics are Group II based, which makes them fairly close to synthetics, especially the Group III ones. ILSAC-3 rated 5W-x non-synthetics are mostly Group-II+, which makes them even better, especially in terms of cold temperature performance. Most Group-II+ oils have pour points of -45', which is close to PAO-based 5W-30 and 10W-30 Mobil 1 SuperSyn. Good examples are Havoline and Chevron non-synthetics that are cheap ($1-1.20/qt) and of excellent quality.
posted by 12.163.15...
Posts in this Thread:
- $140 Engine Flush and Converting to Synthetic, Shallas, Thu, 19 Jun 2003 08:47:02
- Converting to Synthetic, Dick in Falls Church, Fri, 20 Jun 2003 07:31:37
- Flush no good. Tear down required or replace engine., David, Thu, 19 Jun 2003 13:55:19
- May be more harm than good (+), Vlad, Thu, 19 Jun 2003 10:57:30 <-- Viewing This Message
- Re: $140 Engine Flush and Converting to Synthetic, GaryG, Thu, 19 Jun 2003 09:32:41
- How much for the A/C recharge?, ScottB, Thu, 19 Jun 2003 08:57:35
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