GolfGTIforum.co.uk

Model specific boards => Golf mk7 => Topic started by: Rob_benton on 12 July 2023, 09:05

Title: 5w40 oil as engines get older
Post by: Rob_benton on 12 July 2023, 09:05

Hi

I usually add 3/4 litre of 5w30 oil between 10k services and speaking to my Vw specialist, he says they use 5w40.

My engines on 70k.

Does anyone use the thicker oil to reduce consumption?

Cheers

Title: Re: 5w40 oil as engines get older
Post by: Adam T7 on 12 July 2023, 11:28

Mine’s on 22K and I’ve been using Millers 5W40 Nanodrive at the suggestion of the local Independent Specialist. I’ve noticed no oil loss ever on the car since I’ve had it from new (12/2018) with either 5W30 or 5W40.
Oil and filter get changed every 6 months and I only do about 4.5K miles pa,so probably not a fair comparison to answer your specific question
5W40 is a recommended VW spec so can’t do any harm.

Title: Re: 5w40 oil as engines get older
Post by: Tractor Dave on 12 July 2023, 13:12

Yes. Thin oil is used to increase fuel consumption and reduce emissions. Thicker good quality oil will reduce wear.
I use 10/60 in my old S2 and she loves it.

Title: Re: 5w40 oil as engines get older
Post by: joe6 on 12 July 2023, 20:26

My mk6 has always had 5w30 and now on 97k and still does not use oil which is changed every 6 months with filter.