Two stroke oils / Stihl Ultra / Stihl Motomix

[Muddy42]

I went for this oil from Wickes.  On the plus side its rated JASO FC (2nd highest rating), bright red, semi-synthetic (I am a bit suspicious of full synthetic, probably irrationally) and only £9.  I can report back on what it performs like and does to pistons in a few months. I'll still use premix for occasional use, i only mix fresh for strimming and longer firewood sessions.

The Handy 2 Stroke Semi-Synthetic Engine Oil - 1L | Wickes.co.uk

WWW.WICKES.CO.UK

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The Handy 2 Stroke Semi-Synthetic Engine Oil - 1L

 

[pleasant]

'Semi-Synthetic 2 stroke engine oil suitable for mixing at 40:1 or 50:1 ratios'

 

...oh dear....I would avboid that like the plague with that written on it. Tells me they don't know what the correct dilution ratio for the best protection is.

 

Modern oils should have one ONE dilution ratio on the bottle....the CORRECT one for the oil in the bottle...not one open to interpretation.

[Muddy42]

26 minutes ago, pleasant said:

'Semi-Synthetic 2 stroke engine oil suitable for mixing at 40:1 or 50:1 ratios'

 

...oh dear....I would avboid that like the plague with that written on it. Tells me they don't know what the correct dilution ratio for the best protection is.

 

Modern oils should have one ONE dilution ratio on the bottle....the CORRECT one for the oil in the bottle...not one open to interpretation.

 

Thanks but I don't really understand.  Surely its up to the user to decide on the ratio they use and tune for, just like someone's preference for strong or weak Ribena?

[Crocky]

I’ll be honest I wouldn’t use cheap oil in anything. Good quality fuel and oil is worth the extra money. 

[petercb]

3 hours ago, Muddy42 said:

I went for this oil from Wickes.  On the plus side its rated JASO FC (2nd highest rating), bright red, semi-synthetic (I am a bit suspicious of full synthetic, probably irrationally) and only £9.  I can report back on what it performs like and does to pistons in a few months. I'll still use premix for occasional use, i only mix fresh for strimming and longer firewood sessions.

The Handy 2 Stroke Semi-Synthetic Engine Oil - 1L | Wickes.co.uk

WWW.WICKES.CO.UK

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The Handy 2 Stroke Semi-Synthetic Engine Oil - 1L

 

So a higher rating than Ultra but many would consider Wickes Oil cheapo nasty stuff.

 

My Jap Ranger is at 190K miles and counting ran almost exclusively on supermarket diesel with no issues despite dire warnings from many.

 

I buy oil on spec not 'name'.

[Crocky]

I’ve posted some photos of a couple of 572s I tore down for port work. Gives an idea of what’s going on inside with premix and two stroke mix. 
 

 

[Muddy42]

47 minutes ago, petercb said:

So a higher rating than Ultra but many would consider Wickes Oil cheapo nasty stuff.

 

My Jap Ranger is at 190K miles and counting ran almost exclusively on supermarket diesel with no issues despite dire warnings from many.

 

I buy oil on spec not 'name'.

Totally.  This is JAS FC (I understand only fully synthetic oils are clean enough for the hgiher FD rating) and Stihl Ultra doesn't even warrant a rating at all, some chemists say it is 1980s era spec and technology.

[pleasant]

4 hours ago, Muddy42 said:

 

Thanks but I don't really understand.  Surely its up to the user to decide on the ratio they use and tune for, just like someone's preference for strong or weak Ribena?

If your preferences are scoring or muffler and plug fouling and excess smoke then yup....fill your boots.

 

Oils particulary modern oils are designed to be diluted at one specific ratio for best protection and performance. That is why it is only the generic supermarket brand oil...the ones who give no clear definite ratio, or who put 'mix it to what your handbook states' are the ones I see on a monday morning.

 

Oil is cheap engines and repairs arent

[Muddy42]

1 hour ago, pleasant said:

If your preferences are scoring or muffler and plug fouling and excess smoke then yup....fill your boots.

 

Oils particulary modern oils are designed to be diluted at one specific ratio for best protection and performance. That is why it is only the generic supermarket brand oil...the ones who give no clear definite ratio, or who put 'mix it to what your handbook states' are the ones I see on a monday morning.

 

Oil is cheap engines and repairs arent

Thanks. what oil would you recommend?

[J@mesC]

On 06/06/2023 at 21:39, Muddy42 said:

Thanks. what oil would you recommend?

Ditto - lots of “what not to use” posts but what’s a decent oil that’s easily available please? I don’t use huge quantities so cost isn’t the biggest driver and rather not scrimp on a couple of quid here and there when talking about thousands worth of kit.