I use semi synth only in my motorbike - change it every 3 months or so and a new filter.
revs to 15k and is 20 years old
full synth in a bog standard, N/A car seems to be a waste IMO
Better to change it more often.
I suggest you ask for a Viscosity - Temperature chart and fitration efficiency numbers next time buying oil and filter.Belatti wrote:Hi, I would like to gather information and experiences here, about oils for streetcars.
Any experience, weird or not may be posted.
Right now I am using a 15W-40 semi-synthetic multigrade oil in my Audi 1.8T 20v engine.
What do you think about changing that to this:
http://www.opieoils.co.uk/pdfs/castrol/ ... 10W-60.pdf
Thanks for the concern, a lot!safeaschuck wrote: oh and sorry, Bellati, I have found oil grade to make very little difference on a road car. Is your engine using a lot of oil? if so there is only one real cure and that is a re-hone, usually coupled with new rings, and in an ideal world, oversize pistons. usually the cost and down time rule it out for roadcar drivers, just keep pouring it in.
Why a heavier weight in the summer? My summers can get up to 120 degrees ambient. And now it's mostly city driving.ISLAMATRON wrote:...
For winter you might want a thinner oil maybe 10-30/40 or even 5-30(or 0-30). Summer, depending on the heat 15-40 should do you well... the best bet is to check your owners manual, especially with cars made by ZEE Germans.
....
It is broadly said that its no good, but then if your engine has 190.000 miles, then it must not be that importantautogyro wrote: Only one thing I always do and that is to run the engine on cold start up at 2,000 rpm for 20 seconds to get the oil round the system.