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Car Forum / Lexus Cars / June 2008Using synthetic oil
I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350 cars. Is there a problem with using synthetic oil instead (at say Jiffy lube or other non-Lexus garage) and extending the oil change period to 7,500 miles? Would that mess up the warranty? Jeff I often wonder why US supplied cars have a much lower oil change interval, as indicated by manufacturer, than those supplied in Europe. That includes vehicles supplied with 3 year 90,000 warranty & those supplied with unlimited milage in the 3 year period. My last Lexus had a 9,000 miles interval, later models 10,000 / 20,000? So far I have seen no explanation >I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350 >cars. Is there a problem with using synthetic oil instead (at say Jiffy >lube or other non-Lexus garage) and extending the oil change period to >7,500 miles? Would that mess up the warranty? > > Jeff Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles whichever comes first. They are the only synthetic oil that goes that long. I been using it for many years in all my cars including both my Lexus'es. Wayne > I often wonder why US supplied cars have a much lower oil change interval, > as indicated by manufacturer, than those supplied in Europe. [quoted text clipped - 9 lines] >> >> Jeff Yes, but my question is if doing so and lengthening the oil change interval would invalidate the Lexus warranty. Jeff > Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles > whichever comes first. They are the only synthetic oil that goes that [quoted text clipped - 17 lines] >>> >>> Jeff No! Amsoil far exceeds all car manufactures. Wayne > Yes, but my question is if doing so and lengthening the oil change interval > would invalidate the Lexus warranty. [quoted text clipped - 22 lines] >>>> >>>> Jeff > No! Amsoil far exceeds all car manufactures. > > Wayne Only Amsoil oil of the proper viscosity meets API specification SM meets or exceeds the automaker's specifications. If the oil does not meet API SM specifications, then it does not meet the automaker's warranty requirements for the engine and related systems. Also, the automaker's recommended maintenance intervals need to be followed for warranty coverage. Of course, if Wayne or Amsoil is going to provide warranty coverage for the engine, then the vehicle owner can follow Amsoil's recommendations.  SignatureRay O (correct punctuation to reply) Amsoil will back up all their products. Remember the Magnuson-Moss Act? I suggest that you do some research. Wayne >> No! Amsoil far exceeds all car manufactures. >> [quoted text clipped - 8 lines] > Of course, if Wayne or Amsoil is going to provide warranty coverage for the > engine, then the vehicle owner can follow Amsoil's recommendations. Access to the complete Magnuson-Moss Act is available on the Internet by key words Magnuson-Moss Act or Federal Trade Commission Wayne Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles whichever comes first. They are the only synthetic oil that goes that long. I been using it for many years in all my cars including both my Lexus'es. Wayne > I often wonder why US supplied cars have a much lower oil change interval, > as indicated by manufacturer, than those supplied in Europe. [quoted text clipped - 9 lines] >> >> Jeff >Check out Amsoil Synthetic Oil, it goes for 1 year or 25,000 miles >whichever comes first. They are the only synthetic oil that goes that >long. I been using it for many years in all my cars including both my >Lexus'es. > >Wayne we read you the first time. ;-) > I often wonder why US supplied cars have a much lower oil change interval, > as indicated by manufacturer, than those supplied in Europe. > That includes vehicles supplied with 3 year 90,000 warranty & those supplied > with unlimited milage in the 3 year period. > My last Lexus had a 9,000 miles interval, later models 10,000 / 20,000? > So far I have seen no explanation Aren't they using synthetic oil in Europe? Oil analysis posted at bobistheoilguy.com doesn't bode well for that 20,000 mile oil change interval. >I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350 >cars. Is there a problem with using synthetic oil instead (at say Jiffy >lube or other non-Lexus garage) and extending the oil change period to >7,500 miles? Would that mess up the warranty? > > Jeff There is no problem with using synthetic motor oil as long as it meets current API specification SM. Using motor oil that does not meet API SM or extending the oil change period to 7,500 miles would only mess up the warranty on your motor and emissions system, including the catalytic converter, not the rest of the car, and only if the non-specified oil caused a problem. SignatureRay O (correct punctuation to reply) So, using and synthetic oil and lengthening the oil change period would set me up for arguments should I later need to use the warranty for engine or catalyst repairs...... Jeff >> I believe Lexus uses standard oil for its 5,000 mile oil changes on >> GS 350 cars. Is there a problem with using synthetic oil instead [quoted text clipped - 9 lines] > the catalytic converter, not the rest of the car, and only if the > non-specified oil caused a problem. > So, using and synthetic oil and lengthening the oil change period would > set me up for arguments should I later need to use the warranty for engine > or catalyst repairs...... > > Jeff Yes it would. SignatureRay O (correct punctuation to reply) But why the difference in intervals for US & EU vehicles??? >> So, using and synthetic oil and lengthening the oil change period would >> set me up for arguments should I later need to use the warranty for [quoted text clipped - 3 lines] > > Yes it would. > But why the difference in intervals for US & EU vehicles??? I don't know, but since if the vehicle is operated in the U.S., then one should follow the maintenance intervals for U.S. vehicles if one wishes to have the factory warrant the vehicle in the U.S. SignatureRay O (correct punctuation to reply) Because the US car manufactures and the oil companies want to sell more oil! It's a known fact. The eu has always had longer oil drains then us because they pay far more for their gas and oil. Wayne > But why the difference in intervals for US & EU vehicles??? > [quoted text clipped - 5 lines] >>> >> Yes it would. On Jun 9, 3:46 am, "J...@unknown.com" <JeffMa...@orthohelp.com> wrote: > I believe Lexus uses standard oil for its 5,000 mile oil changes on GS 350 > cars. Is there a problem with using synthetic oil instead (at say Jiffy > lube or other non-Lexus garage) and extending the oil change period to 7,500 > miles? Would that mess up the warranty? > > Jeff Mobil 1 Synthetic oil for the GS350 is all API SM rated so that's not an issue. An engine oil related issue caused by using a 7500 change interval with Mobil 1 is HIGHLY unlikely. My Toyota dealer sells Mobil 1 and they suggest a 7500 oil change interval. But if want zero risk, change it every 5000. |
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