A Alex P. Joined Jul 20, 2005 Messages 304 Location Spotsyltucky, VA Sep 1, 2005 #21 So we (in the USA) use the average of RON and MON, and Australia uses RON, so Losiho's numbers are about right?
So we (in the USA) use the average of RON and MON, and Australia uses RON, so Losiho's numbers are about right?
V Volvohead Joined May 25, 2005 Messages 3,612 Sep 1, 2005 #22 quote: Originally posted by kenw: GM recommended LOW lead starting in 1971. Click to expand... Correct. Lead levels were dropping prior to '74. But even up until then, there was still a little lead needed on most engines. 1974 was the watershed year for unleaded fuels in the US and the engines that had to run on them. For another take on this: http://www.chevron.com/products/prodserv/fuels/bulletin/unld-gas/
quote: Originally posted by kenw: GM recommended LOW lead starting in 1971. Click to expand... Correct. Lead levels were dropping prior to '74. But even up until then, there was still a little lead needed on most engines. 1974 was the watershed year for unleaded fuels in the US and the engines that had to run on them. For another take on this: http://www.chevron.com/products/prodserv/fuels/bulletin/unld-gas/
