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In this cold weather, it is beneficial to use an oil that has good cold start flow properties as it will get to the parts of the engine that need it far more quickly.
The "w" number which means winter is the key here and the lower the better.
It may seem odd but a 15w or 20w will struggle...
Indeed, we ran an Elise with a Honda engine in it (tuned) in the Britcar 24 hour race at Silverstone this year on the same oil for the full 24 hours!
Of course it was a true pao/ester synthetic.
Cheers
Simon
It's a hydrocracked oil, not in the same league as ester based ones like Silkolene and Motul and almost the same price per litre as well.
They do have Ferrari on the bottle though ;)
Cheers
Simon
I would steer well clear of 10w-60 as it's way to thick which will cause friction, heat and engine wear plus lower BHP at the wheels and poorer fuel consumption.
The oil for these cars is sae 40 which is 14cst at 100degC, sae 60 is 24cst at 100degC, that's a whole 70% thicker than...
Nothing wrong with quality there, however the SAE60 is way, way out of grade.
You dont want to go any thicker than an SAE50 for a heavliy modded/tracked car.
Normally a good 5w-40 is ideal.
Cheers.
A word of caution – You get what you pay for!
Below is an article written by John Rowland, Silkolene/Fuchs Chief R & D Chemist for 40 years.
This article is something that all car owners should read and understand before buying oil and I’ve posted this with Johns permission.
Cheers
Simon
The more modded or extreme use that the car is, use a better quality oil.
5w-40 can be petroleum based or synthetic. Synthetic (pao/ester) is the top quality one.
Basestock categories and descriptions
All oils are comprised of basestocks and additives. Basestocks make up the majority of...
Oddly enough your not far off the mark there!
The ultimate and best lubricant of them all is Castor oil, however it is natural so degrades fast and has no ability to become a multigrade, but its the best.
Cheers.
Yes you do, we have a carriage free offer on at the moment as well!
The following oils are offered "carriage free" until the 14th November.
To order, just call Guy on 01209 215164 (Mon-Fri Office hours) and quote November Offer.
ENGINE OILS
Motul
300V 5w-30, 5w-40, 10w-40...
For best protection use 5w-40 synthetic (Silkolene PRO S 5w-40 or Motul 300V 5w-40) in the engine and fully synthetic 75w-90 in the gearbox (Silkolene Syn 5 75w-90 or Motul Gear 300 75w-90).
These products are proper fully synthetics (pao/ester)
Cheers
Simon
Actually, this time of year 5w-40 is better for the engine. Less wear on cold start.
Don't use 15w-50 unless the car is very heavily modded and running higher oil temps.
Cheers
Simon