Can we use 10W-40 in all our cars?
Discussion
I have a diesel Fabia, my brother has a petrol Micra and my Mum has a petrol 406. The Castrol website recommends 5W-30 or 10W-40 for the Fabia, 0W-30 or 10W-40 for the Micra and 0W-30 or 10W-40 for the 406. I bought 20l of semi synthetic Chevron Supreme Diesel 10W-40 from Costco for £35. Can we use it in all our cars?
MElliottUK said:
diesel fabia maybe a PD engine?
if so you need 505.01 spec oil, just so your aware
It's a Fabia SDI so it's not a PD engine.if so you need 505.01 spec oil, just so your aware
TotalControl said:
No. Just don't do it. Google as to why.
Just found this ...http://www.carbibles.com/engineoil_bible.html said:
Can I use diesel engine oil in my petrol engine?
Not really. Diesel engines run much higher compression ratios than petrol engines and they run a lot hotter, so the oil is formulated to deal with this. Plus they produce a lot more dirt in terms of combustion by-products. Diesel-rated oils typically have more detergents in them to deal with this. It's not unheard of for diesel oils to clean a petrol engine so well that it loses compression. Diesel-rated oils also have an anti-foaming agent in them which is unique to diesel engines, and not needed in petrol engines.
Not really. Diesel engines run much higher compression ratios than petrol engines and they run a lot hotter, so the oil is formulated to deal with this. Plus they produce a lot more dirt in terms of combustion by-products. Diesel-rated oils typically have more detergents in them to deal with this. It's not unheard of for diesel oils to clean a petrol engine so well that it loses compression. Diesel-rated oils also have an anti-foaming agent in them which is unique to diesel engines, and not needed in petrol engines.
Edited by Swoxy on Saturday 27th December 20:09
blank said:
If the oil meets or exceeds the specs the cars need, then yes you can use them. I'd be most concerned about the Fabia needing a certain spec.
It's 5W-40 to 20W-50 according to my Haynes manual. It's on the standard service interval based on distance and time so doesn't require Skoda 503 00. So I guess the Chevron Supreme Diesel 10W-40 is fine for the Fabia but not for our other cars?
Edited by Swoxy on Saturday 27th December 20:18
Swoxy said:
blank said:
If the oil meets or exceeds the specs the cars need, then yes you can use them. I'd be most concerned about the Fabia needing a certain spec.
It's 5W-40 to 20W-50 according to my Haynes manual. It's on the standard service interval based on distance and time so doesn't require Skoda 503 00. So I guess the Chevron Supreme Diesel 10W-40 is fine for the Fabia but not for our other cars?
Edited by Swoxy on Saturday 27th December 20:18
rigga said:
Having worked in main dealers....... the same bulk oil goes in everything,petrol,diesel and turbo diesel...too much rubbish spouted about the reletive use of certain oils,could fill PH up by itself
Yes, these modern very low viscosity oils are only required on long service intervals, to stop the oil turning into glue and to give slightly better economy.You're best using a decent 10/40 oil and changing it more often.
You could probably use it and it would probably work, but don't you think if manufacturers specify a particular type of oil it might be for a reason?
Chances are the wrong type will accelerate engine wear or do some kind of damage.
Why take the risk?
ETA: There's a reason there's a million page Opie Oils thread on here!
Chances are the wrong type will accelerate engine wear or do some kind of damage.
Why take the risk?
ETA: There's a reason there's a million page Opie Oils thread on here!
Edited by NiceCupOfTea on Saturday 27th December 21:04
The Castrol website is wrong and always over specifies the oil for the car. Look up a '99 Renault Clio 1.4 which the manufacturer specs 15W40 mineral for and see what Castrol say!
In short you can't use that oil really, but if you drop it out every 6k miles and the cars aren't that valuable then you're probably OK. I'd still use the proper stuff.
In short you can't use that oil really, but if you drop it out every 6k miles and the cars aren't that valuable then you're probably OK. I'd still use the proper stuff.
In my opinion you'll be absolutely fine with using the oil you've got in all of your cars.
Certain engines do need different oils really (VAG PD's, Ford Zetec's etc) but your average few year old shopping/commuter car it really makes no odds IMO so long as it's roughly the right grade. As said, most garages will be using the same oil for anything they service anyway, and my attitude is that fresh oil is always going to be better than oil that's been in there for 10k miles or whatever (things like running-in oil excluded, of course).
Certain engines do need different oils really (VAG PD's, Ford Zetec's etc) but your average few year old shopping/commuter car it really makes no odds IMO so long as it's roughly the right grade. As said, most garages will be using the same oil for anything they service anyway, and my attitude is that fresh oil is always going to be better than oil that's been in there for 10k miles or whatever (things like running-in oil excluded, of course).
i think people need to be more specific than 'no google it', that gives the impression you know something important we don't. I found this topic whilst googling this chevron oil. I am about to use it in a large cummins diesel engine which requires an API CD oil as it's turbo charged. This well priced oil is CF, so well above a CD rating. It is good for big engines as well as small ones and is sold by some people as a substitute to shell rimula x 15w-40, which is much more expensive.
so if you know something for a fact which we don't, please tell
so if you know something for a fact which we don't, please tell
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