Ok whats the difference between 5 stroke 40 semi synthetic and 10 stroke 40 semi synthetic. need to know as my car is due a oil change. its a petrol turbo. any suggestions on the brands and what to use. thanks
2007-02-28 09:59:20 · 7 answers · asked by sherminator 2 in Cars & Transportation ➔ Maintenance & Repairs
it an astra 2002
2007-02-28 10:09:46 · update #1
In short the 5 w 40 is for colder winter temperatures than the 10 w 40. If you are in UK then i believe either will be ok as our temperature swings are not so significant. If you can refer to your owners handbook or call your local dealer for vehicle specific reccomendations.
2007-02-28 10:10:35 · answer #1 · answered by Anonymous · 1⤊ 0⤋
I am not familiar with the "stroke" identifier between "5" or "10" and "40." However I will assume it is the same as US identifier "W" (for winter), as in 5W40 or 10W40. As a rule, using the thinnest (5W versus 10W) approved oil for your vehicle is usually best for your engine. Since about 80% of engine wear occurs on start up, using oil which flows rapidly minimizes this wear. For the UK, I am confident in saying that the 5W oil would be the better of these two choices, especially if you live in northern Scotland. Most references I have seen recommend using regular oil or full synthetic oil. Semi-synthetic was developed to provide some of the properties of synthetic lubricant at a price lower than full synthetic, but does not have properties equal to full synthetic.
Incidentally, frequent oil changes on turbo cars is especially important. The turbo must always have oil and never overheated!
2007-02-28 19:03:28 · answer #2 · answered by db79300 4 · 0⤊ 1⤋
I petrol turbo charged engine puts great demands on its oil and if you want the engine to last then you must put the best quality oil in. This must be a full synthetic oil and probably the best of all is Mobil 1. It is also one of the most expensive.
A worth while tip is to allow the engine to tick over after you have been for a longish drive. The tips of the rotors inside the turbine can run at 900 degrees C which is enough to cook any oil if you switch off immediately when you park, if you allow oil to cool the tips at tick over for a minute you will preserve the life of your oil, your turbo and your engine,
The classic bad thing to do would be a blast up the motorway, pull in at some services and switch off.
2007-03-01 03:30:11 · answer #3 · answered by Nimbus 5 · 1⤊ 0⤋
The difference between 5W-40 and 10W-40? The 5W (or 10W) refers to the viscosity in winter (that is, at lower temperatures.) 5W-40 will flow more readily at low temperatures, which is why many auto makers recommend it. The "40" refers to the viscosity at operating temperature. So, 5W-40 flows better than 10W-40 when cold, but both are the same once up to normal operating temperature. And semi-synthetic just means that the oil is a blend of natural oil and artificially-made lubricants.
2007-02-28 18:57:55 · answer #4 · answered by Me 6 · 0⤊ 0⤋
Get 20 w 40 by Duchams or another good brand. This will be OK down to minus 20 degrees in the winter and up to 40 degrees in the summer. (that is what the numbers mean) More than a wide enough temperature margin for England (and most other places!)
HTH LOL
2007-02-28 18:42:21 · answer #5 · answered by R.E.M.E. 5 · 0⤊ 0⤋
Depends on make of car ,they will recommend a brand for you ,avoid cheap alternatives ,as petrol turbos run very hot you need the best such as Castrol or Duckhams ,Shell multi grade was also a good chice for turbos in recent years
2007-02-28 18:07:40 · answer #6 · answered by not a mused 3 · 1⤊ 0⤋
amsoil-------has twice the life of regular oil-------
2007-02-28 20:49:21 · answer #7 · answered by Anonymous · 0⤊ 1⤋