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Austinsevenfriends
What have you done today with your Austin Seven - Printable Version

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RE: What have you done today with your Austin Seven - Chris KC - 10-01-2019

(10-01-2019, 07:24 PM)jansens Wrote: I am going to use Penrite Classis Light 20W-60 in the engine. Is that OK for the gearbox too? It does say to replace SAE30 where originally specced. I prefer using the same oil in both if I can.

Simon

That sounds a bit heavy to me Simon, I run 20W/50 in mine and if I were ever to change I'd be looking at thinner oils not thicker. I've only ever used engine oil (either 20W/50 or straight 30) in the gearbox and have no plans to change.

RE: What have you done today with your Austin Seven - Tony Press - 11-01-2019

(10-01-2019, 11:43 PM)Chris KC Wrote:
(10-01-2019, 07:24 PM)jansens Wrote: I am going to use Penrite Classis Light 20W-60 in the engine. Is that OK for the gearbox too? It does say to replace SAE30 where originally specced. I prefer using the same oil in both if I can.

Simon

That sounds a bit heavy to me Simon, I run 20W/50 in mine and if I were ever to change I'd be looking at thinner oils not thicker. I've only ever used engine oil (either 20W/50 or straight 30) in the gearbox and have no plans to change.

In Australia the original engine oil recommendations were SAE 30 winter  SAE 40 summer .

As far as i know the Penrite designation 20w/60 officially doesn't exist- I would think they should really call it 20w/50. 

They say it replaces their original SAE 30 oil - not sure  of the additive package but I think they are suggesting it performs like an SAE 20 when cold and an SAE 60 when hot.

Cheers, Tony P.

RE: What have you done today with your Austin Seven - jansens - 11-01-2019

Quote:In Australia the original engine oil recommendations were SAE 30 winter  SAE 40 summer .

As far as i know the Penrite designation 20w/60 officially doesn't exist- I would think they should really call it 20w/50. 

They say it replaces their original SAE 30 oil - not sure  of the additive package but I think they are suggesting it performs like an SAE 20 when cold and an SAE 60 when hot.

Cheers, Tony P.


Hi Tony, this is the stuff: https://www.penriteoil.com.au/applications/car-4wd/engine-oils/classic-light-20w-60-mineral/benefits#/

I suspect all those specs mean a lot more to you than to me!

I didn't realise Penrite are an Aussie company.

Simon

RE: What have you done today with your Austin Seven - Tony Press - 11-01-2019

(11-01-2019, 05:28 AM)jansens Wrote:
Quote:In Australia the original engine oil recommendations were SAE 30 winter  SAE 40 summer .

As far as i know the Penrite designation 20w/60 officially doesn't exist- I would think they should really call it 20w/50. 

They say it replaces their original SAE 30 oil - not sure  of the additive package but I think they are suggesting it performs like an SAE 20 when cold and an SAE 60 when hot.

Cheers, Tony P.


Hi Tony, this is the stuff: https://www.penriteoil.com.au/applications/car-4wd/engine-oils/classic-light-20w-60-mineral/benefits#/

I suspect all those specs mean a lot more to you than to me!

I didn't realise Penrite are an Aussie company.

Simon

Simon, a very old and well thought of Oil company since the late John Dymond took over the company in 1979- and a great supporter on the Melbourne Austin 7 Club as a major sponsor of Historic Winton. 

The company is still owned and operated by the Dymond family in Melbourne.

Our Spares stock (and I always use) Shelsley Light.

Good choice, cheers, Tony.

RE: What have you done today with your Austin Seven - jansens - 11-01-2019

I am going to run an oil filter so I should be ok with the classic I think (plus that's all Repco had). But not suitable for gearbox? Too heavy as Chris suggests?

RE: What have you done today with your Austin Seven - Tony Press - 11-01-2019

(11-01-2019, 05:49 AM)jansens Wrote: I am going to run an oil filter so I should be ok with the classic I think (plus that's all Repco had). But not suitable for gearbox? Too heavy as Chris suggests?

No- should be OK - not much different to straight 30 but holds a good viscosity when hot.

Cheers, Tony.

RE: What have you done today with your Austin Seven - bob46320 - 11-01-2019

It seems like oils are like domestic LED bulbs, if SAE 20 acts like SAE 30 and a 9watt LED is like an old 60watt bulb. I wonder what the viscosity of our oils are like just before we do an oil change, thinner or thicker. In my case definitely thinner as I rarely top up the engine oil, so I suspect that it is thinned out by petrol as there is little evidence of condensation around the oil filler.

RE: What have you done today with your Austin Seven - Chris KC - 11-01-2019

Without labouring the detail too much, multigrade oils achieve the 2nd figure by means of polymers which have a tendency to break down as the oil ages. Thus a 20W50 will ultimately behave something like an SAE 40 when hot but is probably a bit on the thick side when fresh. A 20W60 (must admit I've never heard of one till now) will be that much thicker. A multigrade is definitely a better bet than a straight grade as it reduces the amount by which the oil thickens as it cools, thus improves oil flow on a cold engine, which is where all the damage occurs.

RE: What have you done today with your Austin Seven - Dave Wortley - 11-01-2019

Been in garage since 6.15am relining chummy rear brakes. Put the wheels back and noticed one has 3 broken spokes. B*gger!

RE: What have you done today with your Austin Seven - JohnD - 11-01-2019

After my gearbox imploded in July on the way to the Scottish Austin Seven Club Rally at Guildtown, i have finally got the replacement gearbox fitted, so thats us back on the road!