Engine Oil For Summers

[Porsche_Maker]

Why dont use Liqui Moly, its German Origin and purchase it from Authorized Dealer. You can purchase 5W-40 API SM ILSAC Fully Synthetic Engine Oil or 10w-40 Semi Synthetic as many Syn being sold here are not actually Synthetics

[Saadyj]

Hey guys,
What's the ideal way to shift between oils of different grades (engine flush required?) and is it recommended to use different grades for summers and winters?
Isn't it harmful for the engine to switch between oil grades?

[222Ammar]

PLZ HELP ME. I NEED HELP OF EXPERT.
All Fully or 100% Synthethic Engine Oils have Low SAE Grades Like 0W-30, 5W-30, 5W-40 etc but synthetics are considered best for good Engine Protection.
These Low Viscosity SAE grades of Synthetics are not suitable for high temparature of Lahore in June ie 50′C
After 2 Days of Google Search, I found that SAE ()W-30 and ()W-40 oil can give good performance only below atmospheric temparatues of 37′C and 46′C respectivelyThe Oils with High SAE Grades like 10W-50, 20W-50 are not Fully Synthethic.They are Blends or Mineral Oils.

Low SAE Grades means Low Viscosity and High SAE Grades means High Viscosity. Low viscosity is for Winter and High Viscosty is for Summer.

So Plz tell me? Can I use 100% Synthetic Oil in Extreme Summer with AC in heavy traffics where temparature is extremely High?

I have new 2013 Suzuki Swift 4000km Driven and I want to use Synthetic Oil. But I am afraid of Extreme Hot Weather because synthetics usually have less viscocity.

I want to use ZIC XQ SAE 5W-40, API SM. Can I use it in JUNE???