What happens if I use 15W40 instead of 10w40?
A 10W40 oil will be thicker in the cold than 15W40 oil, but they will have the same viscosities at higher temperatures. Hence, a car will start with fewer cranks when holding oil of a lower winter weight. 10W40 oil will perform cold starts better than 15W40 oil.
Can 10W 40 be used in a diesel engine?
HPR Diesel 10 is recommended for use in vehicles where SAE 10W-30 or SAE 10W-40 applications. It is suitable for use in many older diesel and LPG powered vehicles requiring an engine oil meeting API CI-4, API CH-4, CG-4, CF-4 or older specifications.
What is the difference between 10W-30 and 15W 40?
Since 10W-30 is thinner than 15W-40, its film strength can be weaker and it can be more prone to oxidation. Therefore, high quality additives are needed to compensate for those weaknesses in order for 10W-30 to protect as well and last as long as 15W-40.
What is 10W 40 motor oil good for?
10w40 is better suited for hot weather or heavy loads. When you expect your vehicle’s operating temperature to be higher than most casual driving cars, using 10w40 is recommended. The higher viscosity of 10w40 at high temperatures reduces wear and tear when putting more pressure on your vehicle’s engine.
What temperatures is 15W40 oil good for?
“Its starting temperature range is down to minus 22 F (compared with 15-plus with 15W40) up to 122 degrees F (same as 15W40). That tells you a couple things: There’s a 37-degree cold cranking advantage (from minus 22 to plus 15) to a 5W40 and the same benefit on the high end.”
Is 10w40 oil for petrol or diesel?
10w40 semi synthetic oil for petrol and diesel engines.
Which oil is better 10W30 or 15W40?
Because 10W-30 is thinner than 15W-40 oil, its film strength can be weaker and it can be more prone to oxidation. High quality 10W-30 oils can perform as well, and better than industry-standard 15W-40 oils.
Can I mix 10W30 and 10w40?
Mixing 10W30 with 10W40 Some say that mixing them is fine as long as you don’t live in freezing weather. Even if you put together synthetic and conventional blends of these motor oils, they show no harm to your vehicle.