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I did pour 5w40 once in a very hot summer once and replaced it after 10k kilometres without a drop of oil consumption 😌

Thanks alot man

Thank you very much 👍

it's Altima 2.5L , oil 5w30 and it reaches -5c in the morning in winter

Thank you, I live in Baghdad where sometimes it reaches -5 in the morning

Hello everyone, I read somewhere a way build oil pressure in engine before engine starting to minimise cold start friction by disconnecting fuel pump relay and cranking the engine without starting it for few seconds, Is that really beneficial in cold weather start?? Thanks in advance.

Thanks for the info, I guess I will stick with known brands.

LX Prestige 5w-50

No it's not a ghost question, I just wanted make sure it's goods for racing application, Brand name is United oil and it's made in Singapore, http://www.united-oil.com/products/catelist.aspx?cid=75

United oil, made in Singapore http://www.united-oil.com/products/catelist.aspx?cid=75

Thanks for the info

Hello everyone, I want to use a premium synthetic oil (manufacturer claim)and I noticed from it's SDS (see attached) that it contains small percentage of esters and I don't see any PAO , Is it considered premium 100% synthetic and can I use it for racing ??

But how to make sure that a certain oil is really certified be API ??

I appreciate your passion and Great knowledge in the above answers, thank you very much.

I think Test results only show the ppm of zinc and phosphorus regardless if they are functioning or not

Hello, I have a question please, does ZDDP additive protects cylinder walls and main bearings as much as it protects the camshafts?? In another way, is the protecting film on cylinder walls is as thick as on the camshafts?? Because many articles talking about zddp mainly focus on camshafts and...

Thanks alot, very informative, I watched some YouTube videos about oil analysis and it appears that zinc and phosphorus can last up to 10,000 miles from test results, Here are the videos:

they should be sued for lies like these

After how many miles does the anti wear additives (like zinc, phosphorus etc..) depletes from the oil (approx.) ?? does it deplete as fast as the other additives like detergent or dispersants ??

Exactly