MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: berg on August 28, 2012, 11:28:15 am

Title: Can you mix brands of oil as long as same quality/VW spec?
Post by: berg on August 28, 2012, 11:28:15 am
As above, I have Castrol 5W/30 in at the moment but wanted to try the Millers Nanodrive. Can I top up with 5W/30 Millers or is it not advisable to mix different brands even if meet VW504 spec etc? 

Thanks.
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: john87 on August 28, 2012, 12:09:19 pm
mixing brands when topping up is perfectly fine, as long as they are both of the same type i.e. fully synthetic  :happy2:
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: sideshowfred on August 29, 2012, 09:05:59 am
Isn't nanodrive that new one that's supposed to up your bhp?? If so surely it wouldn't give any of the benefits just mixing it in with normal oil.
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: RedRobin on August 29, 2012, 09:13:27 am

Isn't nanodrive that new one that's supposed to up your bhp??


....Really?  :surprised: How does an oil up bhp? :surprised:
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: sub39h on August 29, 2012, 09:18:51 am

Isn't nanodrive that new one that's supposed to up your bhp??


....Really?  :surprised: How does an oil up bhp? :surprised:

Decreasing friction between engine components.

Porsche demonstrated similar results to what Millers are claiming on their Cayenne models by using low friction oils in a study a few years ago.

vRSAlex swears by Millers CFS, says it even reduced his cam follower wear.
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: sideshowfred on August 29, 2012, 09:19:34 am
I don't know but reading this seems to suggest the same thing http://www.millersoils.co.uk/nanodrive.asp (http://www.millersoils.co.uk/nanodrive.asp)
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: RedRobin on August 29, 2012, 09:30:57 am

Isn't nanodrive that new one that's supposed to up your bhp??


....Really?  :surprised: How does an oil up bhp? :surprised:


Decreasing friction between engine components.

Porsche demonstrated similar results to what Millers are claiming on their Cayenne models by using low friction oils in a study a few years ago.

vRSAlex swears by Millers CFS, says it even reduced his cam follower wear.


....Thanks, sub  :happy2: I'm glad I challenged it.

Hmm, sounds good stuff - Is Millers Nanodrive oil much more expensive?

What attracts my interest is its claimed maintenance benefits rather than the extra bhp.

Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: Tamiyoman on August 29, 2012, 10:10:52 am
In the millers oils app guide they don't seem to offer 5w/30, only 5w/40
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: stealthwolf on August 29, 2012, 02:11:58 pm
When I spoke to Alex, he said a tuned car tends to work harder than OEM spec so 5W-30 isn't enough but 5W-40 is best.
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: Tamiyoman on August 29, 2012, 02:21:03 pm
When I spoke to Alex, he said a tuned car tends to work harder than OEM spec so 5W-30 isn't enough but 5W-40 is best.

Cheers for that, will get some of this and give it a try for next oil service in another 2k (change it every 6k which is once per year!).
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: RedRobin on August 29, 2012, 02:22:18 pm
^^^^
Methinks that, subject to JKM's advice, it'll be 5W-40 Millers Nanodrive for me next oil change. I change oil every 10k miles. (Stage 2 K03)
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: berg on August 29, 2012, 10:17:07 pm
yup, i was going to try and switch over to it, opie oils has it at just over £60.00 for 4 litres so yes it is more expensive than the others but if it is genuinely superior would pay it
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: MC71 on August 29, 2012, 10:44:32 pm
How would I know which oil (5W-30 or 5W-40) is best for the engine in my Stage 1 Eddy?
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: stealthwolf on August 29, 2012, 10:47:51 pm
I'm the same and use 5W-40 at the advice of alex.
Title: Re: Can you mix brands of oil as long as same quality/VW spec?
Post by: MC71 on August 29, 2012, 10:54:46 pm
^^^^ thanks Stealth, most helpful.  :happy2: