Protection? If they say so. Warranty? Probably not..And I am not vouching for the usefulness of these warranties. BTW anyone know of a mfg that recommends 10,000 OCI with conventional oil? If not just throw away question and answer.
Mobil Clean 5000 Motor Oil Limited 5000 Mile or 6-Month Warranty
This is a limited warranty covering the Mobil Clean 5000 lubricant you purchased. ExxonMobil warrants its lubricants to be free from defects and will replace any Mobil lubricant that is defective. ExxonMobil guarantees that the Mobil Clean 5000 lubricant you purchased will protect your vehicle’s critical engine parts from oil related failure for 5,000 miles or six months, which ever comes first. If not, provided the engine was serviceable at the time the oil was installed, ExxonMobil will have your vehicle repaired and replace the oil at no cost to you. Be advised that if your vehicle is covered by a warranty, you should follow the vehicle's oil life sensor or the oil change interval recommended in your owner's manual to avoid a disruption in your vehicle warranty. Follow your owner's manual if the vehicle is operated in any of the following severe services: racing or commercial applications including taxis, limousines, etc.; frequent towing or hauling; extremely dusty or dirty conditions; or under excessive idling conditions.
ExxonMobil Lubricants & Petroleum Specialties Company, a division of Exxon Mobil Corporation ("ExxonMobil") provides this limited warranty to the purchasers who use Mobil Clean 5000 lubricant in their vehicle.
This limited warranty covers the Mobil Clean 5000 lubricant and critical engine parts lubricated by the lubricant.
This limited warranty is valid for 5,000 miles or six months from the date [purchase or installation], whichever is earlier.
Take care.