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May 22, 2011 12:23 am
May 22, 2011 12:23 am
Subject: Re: Suitable Engine Oil
I'm not a lubrication expert but the following may just be worth mentioning. I understand that modern oils contain detergent additives which help keep the internals clean. I've just stripped my LG6 engine which has not had much work done on it for many years. I've removed the plugs from the crankshaft webs and scraped out a heaped teaspoonfull of crap from each oilway and also found thick deposits in the crankcase oilways. I've run the engine on SAE30 grade oil and not had problems.
I wonder if I had changed to modern oil with detergent additived, if the oil would have loosened the deposits whose next journey would have been through the big end and main journals doing whatever damage it may have done or which might have caused a total blockage causing big end or main bearing failure.
If you're running a fully reconditioned engine I'm sure that most modern oils will do fine but if its not been touched for a while a more basic oil may be best. There may be a difference between 'cheap oils' and basic grade oils which may be good quality but without the additives which modern 100bhp plus per litre engines so desperately need.
I'm not a lubrication expert but the following may just be worth mentioning. I understand that modern oils contain detergent additives which help keep the internals clean. I've just stripped my LG6 engine which has not had much work done on it for many years. I've removed the plugs from the crankshaft webs and scraped out a heaped teaspoonfull of crap from each oilway and also found thick deposits in the crankcase oilways. I've run the engine on SAE30 grade oil and not had problems.
I wonder if I had changed to modern oil with detergent additived, if the oil would have loosened the deposits whose next journey would have been through the big end and main journals doing whatever damage it may have done or which might have caused a total blockage causing big end or main bearing failure.
If you're running a fully reconditioned engine I'm sure that most modern oils will do fine but if its not been touched for a while a more basic oil may be best. There may be a difference between 'cheap oils' and basic grade oils which may be good quality but without the additives which modern 100bhp plus per litre engines so desperately need.