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Why is that Chris

Valvoline make a 0w30 and 5w30 in A7/B7 spec I'm sure there are more too

This is not related to the warranty which has expired, it is to stop the valvetrain (bbq tick) noise. My manual specifies 5w20, as do all UK mustangs registered 2015-2017, I change the oil every 2500-3000 miles 😁

Hi guys, I own a Ford Mustang GT that specifies 5w20 however I have read here that thicker oil can help with valvetrain noise. So I bought Shell Helix Ultra API SL 0w30 oil (gold bottle), only to realise it is not Ford approved. Can I still top-up my 5w20 with this? I'll probably only use a...

What is your opinion on pao + esters as a base vs mpao base

Going by this, a thicker oil will always provide better wear protection, and will not be too viscous for the pump?

I think I will be using Valvoline SynPower FE 5w30 A7/B7 after break-in, reading the posts on this thread. Thanks chaps

Don't you go by this train of thought: "Since thicker oil doesn't transfer heat as well as thinner oil, operating temperatures will increase, possibly leading to accelerated chemical break down (called “oxidation“) and harmful sludge and deposits." Also the tolerances of a new engine are very...

The API SN (ford 948-b and what owners manual recommends) appear to be for small ecoboost type engines and with low/mid saps, which is why I am searching for other oils which are not specified for my car The A7/B7 standard also says it is backward compatible with A5/B5 which should mean it's OK...

Could the oil affect lash/valvetrain/lifters ? I know the previous owner was using oil which the car didn't like by the sounds coming from it when I initially bought the car. After changing oil it was great for a while...before the pump broke The reason I initially posted was because I think...

It may have contributed yes, the car only had 30K miles on a 17 model, the oil pump on RHD Mustangs are known for dying early though

Thanks, maybe im worrying too much. I would rather buy cheap and change often, but after my last oil pump failed I am wary of cheaper/substandard oils

It was on a mustang owners page but you're right, and yes I live in UK

Yes that is the specification and an A5/B5 if the spec oil can't be found

Great, would you mind listing a few brands you recommend in 5w20 weight? I was thinking Ravenol SFE which meets the ford WSS-M2C948-B approval and contain esters which, from what I can see, make a superior oil Millers was recommended on my FB thread

5w20 recommended for street applications

Thanks for the fast response Do you think due to higher saps A7/B7/API SP will work better than the previous manufacturer recommended A5/B5 in my Mustang GT?

As title above states, oils seem to be highly regulated lately, to their detriment. However a7/b7 seems to be a step back in time, with higher levels of saps but continuing the base oil quality of a5/b5. Do you guys think an A7/B7 will work better in a car which requires ACEA A5/B5? I am...