Best engine oil for a Stag

[Stag About Town]

Is it best to stick with 20W50 or something that will get round the engine quicker from cold? I can see the sense of the 50 for when it warms up but not sure about the startup. John

[Lingen]

John.
Stick with it for the simple reason that it is the oil that Triumph recommended for the UK climate. As it was for most other engines of the period.
Mike.

[jbuckl]

+1 for mikes reply.

Avoid low ash low zinc.

Look for high zinc.

some people have had good results using 20-60.

I buy Smith & Allen 20-50 high zinc in 20 litre cans… seems cost effective.

[richardthestag]

https://www.classic-oils.net/Oils-by-Application-and-Type/Four-Stroke-Engine-Oils/Classic-20W50-Multigrades-Mineral-base

I like the Heritage 20/50, correct zinc levels, and if you spend over £60 delivery is free so good for your pocket too

[Paul Kelley]

+1 for Heritage 20/50. I've heard that Valvoline VR1 is back to its original European spec, i.e. with good zinc levels. if correct, then that's an alternative via Opie Oils.

[DMT]

+1 for Heritage 20/50. I've heard that Valvoline VR1 is back to its original European spec, i.e. with good zinc levels. if correct, then that's an alternative via Opie Oils.

+1

[NeilR]

+ another 1 for heritage 20/50

[DJT]

I have been using it for about 4 years.

[jbuckl]

If you buy 20 or 25 litres online, the cost of an oil change is a quarter of the halfrauds price….cost isn’t everything though.

[Rubce]

I've been using the Heritage 20/50 on both our Stag and GT6 for the past 3 years.

[mole42]

+1 for Heritage 20/50. I've heard that Valvoline VR1 is back to its original European spec, i.e. with good zinc levels. if correct, then that's an alternative via Opie Oils.

I just downloaded the European spec sheet - zinc is quoted at 1500ppm for our local Valvoline VR1 (their spec sheet 025/13b) but it's £10 a gallon more expensive than Heritage.

[Goldstar]

Smith and Allen classic 20/50 is 1200-1300ppm (I called and asked them) which is perfect and is about £70 for 20l delivered. I use their 5w30 in my Rangie and just about to order some of this.