<p style="MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span style="mso-ansi-language: DA"><font size="3"><font face="Times New Roman">Hi there.

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<font size="3" face="Times New Roman"> </font></p></span></p><p style="MARGIN: 0cm 0cm 0pt" class="MsoNormal"><span lang="EN-GB"><font size="3" face="Times New Roman">Is it right, that you can run the scratched engine (low compression), with fuel made with 20% castor oil? Set the HSN too lean, to get the engine temperature too high for some minutes. Because of the extreme heat, the castor will make a thick hard surface (</font></span><span style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana; mso-bidi-font-family: Arial" lang="EN-GB"><span style="COLOR: black; TEXT-DECORATION: none; text-underline: none">Carbon</span> buildup?</span><span lang="EN-GB"><font size="3" face="Times New Roman">) in all scratches, so the compression will return.</font></span></p>