MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: ReflexRob on August 21, 2015, 11:12:03 pm

Title: Is 5w-40 ok for standard gti engine?
Post by: ReflexRob on August 21, 2015, 11:12:03 pm

Basically I used to have a BMW that used castrol edge 5w-40 oil and I've got some left over.

I know the manufacturers recommendation is 5w-30 but will it matter? It's vw 502 and 505 grade compliant.

Thanks

Title: Re: Is 5w-40 ok for standard gti engine?
Post by: vRSAlex on August 21, 2015, 11:19:06 pm

5w40 is far better for the engines than the 5w30.

I'm not a Castrol fan so would recommend the Millers Nanodrive instead.

Title: Re: Is 5w-40 ok for standard gti engine?
Post by: ReflexRob on August 21, 2015, 11:22:18 pm

Thanks,  I will switch to Millers but want to use the castrol up first rather than waste it as long as it doesn't cause harm

Title: Re: Is 5w-40 ok for standard gti engine?
Post by: rich83 on August 21, 2015, 11:30:33 pm

It will be fine.

Title: Re: Is 5w-40 ok for standard gti engine?
Post by: Rasco on August 22, 2015, 10:56:23 am

My manual States vw502 or vw504 for the gti I can't remember which?  but that equates to either 0w-30 or 5w-30, I use the Castrol edge stuff and I have been recommended millers but are there any others that are supposed to be better than the castrol?

Title: Re: Is 5w-40 ok for standard gti engine?
Post by: flashp on August 22, 2015, 01:59:15 pm

And go for an Ester based oil whichever grade you buy. With a fully synthetic oil base they're inherently more stable ay high temps in any grade form.

Title: Re: Is 5w-40 ok for standard gti engine?
Post by: PT82 on August 22, 2015, 02:21:24 pm

I use Fuchs Titan Pro Race S 5w 40. Used it for years on all sorts of petrol vehicles. Expensive stuff just like Millers.