taurus577 wrote:My mechanic used Gulf Western 5w30 euro energy
Michael.Finch wrote:Hi All
I'd have to say I've been using Penrite HPR Diesel 5 (5W-40) in my Terracan for the last 12 years and the engine is spotless. Burns nothing.
So I recookn i'll go with the Penrite DL-1 . Wish it was a 5W-40 though. Unless someone has another suggestion?
Is it right 8.3L for a change? I thought he Terracan was bad at 6.5L.
Thanks
Mike
Michael.Finch wrote:I'm still not overly keen on using a 5W-30 oil on 40 Degree (C) days. Winter, fine.
5w-30 is rated to +30C whereas 5w-40 is rated to +50C. No brainer?
Merts wrote:Michael.Finch wrote:I'm still not overly keen on using a 5W-30 oil on 40 Degree (C) days. Winter, fine.
5w-30 is rated to +30C whereas 5w-40 is rated to +50C. No brainer?
Where did you get that info from?
The first figure is the viscosity at cold startup.
The second figure is the viscosity at 100 degrees C.
The engine temperature in your vehicle is going to be roughly the same (controlled by the cooling system thermostat) whether the ambient temperature is 20 or 50.
Manufacturers specify oils to suit their engines based on technical knowledge of what is required. I wouldn't second guess them. I reckon they probably know more about what is required than I ever could.
Merts wrote:Michael.Finch wrote:I'm still not overly keen on using a 5W-30 oil on 40 Degree (C) days. Winter, fine.
5w-30 is rated to +30C whereas 5w-40 is rated to +50C. No brainer?
Where did you get that info from?
The first figure is the viscosity at cold startup.
The second figure is the viscosity at 100 degrees C.
The engine temperature in your vehicle is going to be roughly the same (controlled by the cooling system thermostat) whether the ambient temperature is 20 or 50.
Manufacturers specify oils to suit their engines based on technical knowledge of what is required. I wouldn't second guess them. I reckon they probably know more about what is required than I ever could.
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