
Originally Posted by
Michael2
I did some research into the SVO (straight vegetable (ie: chip) oil, after a guy at work with an old Merc running on SVO offered me unlimited fuel supply if I wanted to convert the 300Tdi.
While older Mercs & tractors run well on SVO, high speed turbo diesels seem to have problems. One of the greatest technical issues is that SVO must be heated to 180deg C before it can attain the lubricosity of diesel.
Bio-Diesel already comes modified to mimic diesel, and those I've spoken to who use it, report cleaner emissions (with a chip shop smell) and quieter engine running, as well as a bit more power (that's on TD5s). However I was at the Penrite factory picking up some oil the other week and the guy was saying there were reports of premature engine damage from vehicles using Bio-Diesel as the chemicals that break down and end up in the sump have different corrosive properties to regular diesel, for which engine oil is made. Personally, I'd hang off the Bio-D till further research was made, or until a suitable engine oil or additive was manufactured (by a reputable company). I think (I'm guessing) occasional use of a Bio-D blend would be okay as a fuel system cleaner, but I haven't done that.
If you thought $2.5K was expensive for the D1 repair (I agree it was), then realise that TD5 repairs are going to be a lot more expensive, especially if you plan on keeping the car for a long time, as the amount of modification investment you mention suggest you do.
Another option is a 130 with a dead 300Tdi to be replaced with the 2.8HS motor, which bolts straight in. It gives TD5 power without any computer stuff. About $11K though. Jase on this forum imports (or imported) them. Maybe price will be better with a stronger $AUD.
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