Engine oil question again (M104)
Just wanted to change the engine oil... I have a whole can of 15W-50 mobile 1 here, which was intended for the porsche. Sadly I think it is synthetic, do you think it is still okay for the 104 or shall I get some proper oil?
read your handbook, it should tell you the range of oils suitable for this engine, if you haven't got one I'd use it anyway. The engine is in theory at least a free revving twin cam which should be fine with Mobil 1
The 15W/50 oil is O.K. for your M104 engine, particularly if it is a high mileage engine. Even, if not, due to the Summer weather the 50 viscosity will still do. Although, I am not sure, I do not expect this to be a synthetic oil. The synthetic oil is usually a thinner oil, the oil tin usually indicates synthetic oils'.
Porsche use the thicker visocity oil due to greater tolerences allowed as the engine runs hotter being air cooled, partly air cooled as some models do.
Cheers,
Hi All the older "run in for 500 miles" engines should be filled with mineral oil only... NOT Synthetic!!! which is for later "machine fit" engines..15W 40 or 15W 50 mineral base oils leave some oil film up in the head and hydraulic tappets. synthetic is like water and drains to the sump very quickly..
Yes, the bottle say it is synthetic...
Pok, if you're worried about this conflicting advice mix it with some cheap stuff from Tesco's :wink: You'd then have a perfect semi-synthetic blend :lol:
Pok, if you're worried about this conflicting advice mix it with some cheap stuff from Tesco's :wink: You'd then have a perfect semi-synthetic blend :lol:
DO NOT mix synthetic oil with minerals, you are not meant to do that.
It all depends on the engine mileage, true, a synthetic will run down like water, the hydraulic tappets may sound tickaty at idle speed, the 50 viscosity may not, unfortunately it is a matter of trail and error if you are that way, otherwise stick to a mineral oil. High mileage and mineral oils do burn also, high oil consumption will damage the KAT, expensive as it is to replace if the consumption is so high you need to relace your engine.
THIS DOES DEPEND ON MILEAGE, 140,000 plus. You are not necessarily waiting for plumbs of smoke to destory the KAT.
Cheers,
a semi synthetic oil is a blend of synthetic and mineral oil, probably ill advised to mix your own but it was said in jest :wink:
http://en.wikipedia.org/wiki/Synthetic_oil#Semi-synthetic_oil
a semi synthetic oil is a blend of synthetic and mineral oil, probably ill advised to mix your own but it was said in jest :wink:
http://en.wikipedia.org/wiki/Synthetic_oil#Semi-synthetic_oil
Sorry prwales,
I am a bit slow on picking up jokes, Thanks for spelling it out.
Cheers,
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Yes, the bottle say it is synthetic...