Which Oil?
04-08-2007, 03:38 AM
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Which Oil?
Sorry for being a numpty, just want to keep my s2000 as good as i can, ive saved hard for this!
Ive read quite a few threads about oil in the s2000
Ive gathered i have to use 10w30 non synthetic
but then ive read posts about people swtichin to synthetic, what would be the benefit for this?
My cars done 23,000 miles nearly, so should i assume mine has 10w30 non synthetic in it?
I just bought a load of 10w40 for the other car to
, now ive got go get more!
Ive read quite a few threads about oil in the s2000
Ive gathered i have to use 10w30 non synthetic
but then ive read posts about people swtichin to synthetic, what would be the benefit for this?
My cars done 23,000 miles nearly, so should i assume mine has 10w30 non synthetic in it?
I just bought a load of 10w40 for the other car to
, now ive got go get more!
04-08-2007, 04:15 AM
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Originally Posted by lukedon,Apr 8 2007, 11:54 AM
i cant mix the oils though can i? if it has 10w30 then i cant top up with 5w40?
At the risk of going on a bit:
The engine in the S2000 needs a good quality oil. The service interval is short and most owners make it shorter still either because it's a third car or they just plain change the oil more frequently.
1) This means that any oil marked as longlife is an expensive waste of time.
Oil is not just about grade it's about quality as well. More important than 10W whatever or 0W something are the SAE and API classifications for the oil.
2) This means buy only good quality branded oils like Mobil or Castrol or Silkolene or Motul or Redline or Shell or Esso or Total.
Some people wonder about the semi synthetic - synthetic difference. some people say that fully synthetic ester based oils are the best.
3) There is some truth in the fact that fully synthetic ester based oils are better than non ester based fully synthetic oils are better than semi synthetics are better than straight mineral oils. Sort of a sliding scale of goodness.
The 0W-40 10W-30 20W-50 thing refers only to the viscocity of the oil The W number indicates the approximate cold cranking viscocity of the oil the other number indicates the viscocity when hot. In this case viscocity numbers are relative as it's pretty obvoius that the oil does not get thicker as it gets hotter.
4) 0W or 10W oils are both fine. (or anything in between)
So the only thing left is the other number right. Not quite but nearly. It's down to the quality thing again but in the UK a 30 weight oil will do just fine so will a 40 weight oil.
5) 10W 30 0r 0W 40 or anything in between is fine for your car.
So it's back to that API and SAE thing (wikipedia if you want more info ) The higher these classifications are generally the better. Or look for stuff on the package about how the oil meets BMW and VAG and Merc standards. The newer and higher the better as long as the standard is not about long life.
Summary
Synthetics from reputable branded companies are the way to go. Semi synthetics from the same companies are nearly as good. Whatever you use change the oil regularly and above all keep it topped up.
that's my brand!
