FACTS: (source wikipedia)
1)Thicker oils are not necessarily better than thinner oils, unless and until manuf. of the car recommends it.
2) Heavy oils tend to stick longer to parts between two moving surfaces, and this degrades the oil faster than a lighter oil that flows better, allowing fresh oil in its place sooner.
3) Cold weather has a thickening effect on conventional oil, and this is one reason thinner oils are manufacturer recommended in places with cold winters.
4) Engine designs are constantly evolving to allow the use of even lower-viscosity oils without the risk of excessive metal-to-metal abrasion, principally in the cam and valve mechanism areas. In line with car manufacturers push towards these lower viscosities in search of better fuel economy, on April 2, 2013 the Society of Automotive Engineers (SAE) introduced an SAE 16 viscosity which now maruti recommends it viz.0W16
5) Lower-viscosity oils are common in almost all newer vehicles. They will not lower the life of engine.Why would manuf.want to damage engine intentionally with thin oil and bear warranty cost of all car repairs?
1)Thicker oils are not necessarily better than thinner oils, unless and until manuf. of the car recommends it.
2) Heavy oils tend to stick longer to parts between two moving surfaces, and this degrades the oil faster than a lighter oil that flows better, allowing fresh oil in its place sooner.
3) Cold weather has a thickening effect on conventional oil, and this is one reason thinner oils are manufacturer recommended in places with cold winters.
4) Engine designs are constantly evolving to allow the use of even lower-viscosity oils without the risk of excessive metal-to-metal abrasion, principally in the cam and valve mechanism areas. In line with car manufacturers push towards these lower viscosities in search of better fuel economy, on April 2, 2013 the Society of Automotive Engineers (SAE) introduced an SAE 16 viscosity which now maruti recommends it viz.0W16
5) Lower-viscosity oils are common in almost all newer vehicles. They will not lower the life of engine.Why would manuf.want to damage engine intentionally with thin oil and bear warranty cost of all car repairs?