I took my 07 RDX in for an oil change today. Once I got home I took a look at the receipt and it says they used Castrol syntec 10w30 oil and not the Mobile 1 5w30 like the manual says. Should I be concerned, or just wait it out until the next oil change? It's got about 97k miles on it at this point, and I'd like to keep it another 5+ years.

 

not to be alarmist but w/our turbo engine, i think you shld have it changed to what's required. maybe you can get away with a bit of driving (say up to 50% oil life) but i personally wont risk it... other ppl might have better opinions, am just stating what i personally would do

 

Syntec is great oil, but it's not HTO-06 and it's the wrong weight.

What did they promise you? Take it back and have them do it right.

 

Yes, be concerned. If you took it to an authentic Acura dealer they are required to use spec oil i.e. Mobil 1 5W30. Nothing less.

Are you the original owner of the RDX? Did you take it to an Acura dealer for oil change or other?

 

i wouldnt be concerned. if a dealer is filling with that then they would be responsible for anything anyways. and the acura dealers around here dont fill with mobil1 either. they use syntec or rotella. both dealers said that just as long as its synthetic, that it would be ok. but granted, you should be the judge of that and get a UOA done. using the reason that its a turbo engine is rather a misnomer due to this being the chosen fill for newer corvette engines. also the difference between a 1030 and a 530 is not so far off that its gonna be the doom of your engine. its rather miniscule.

but how bout you be the judge for yourself

http://www.castrol.com/liveassets/bp...syntec_usa.pdf

http://www.mobil.com/USA-English/Lub...il1_5W-30.aspx

http://www.mobil.com/USA-English/Lub..._1_10W-30.aspx

 

From an Acura Service News bulletin to dealers:

I wouldn't take that seriously though. I've been using old french fry oil in my engine. Works great!

 

^_^ to true, hto-69 certified is even tougher than the 06 and supposedly is porn to the engine. Won't hurt to feed it this, warranty warriors may think other wise.
I pulled this off the Internet

Climate Considerations
Owner's manuals and service manuals will specify the acceptable oil to use at various temperatures. In warm climates, 10W30 is usually an acceptable alternative to the preferred 5W30 and may be used without measurable adverse effects. In the olden days, before multi-weight oils, it was common to have a winter oil and a summer oil. This is no longer necessary, but if you normally use 10W30 because you live in a warm climate then be sure to switch to 5W30 if you plan on using the vehicle in very cold weather.

5W30 versus 10W30
Virtually all new passenger vehicles sold in the U.S. use either 5W30 or 10W30 oil. The difference between the two is that the 5W30 flows better when cold, so if you live in a cold climate or operate your vehicle in a cold climate during the winter months, you should use 5W30 if it is the preferred oil for your vehicle. If you live in a sub-tropical climate and don't operate your vehicle in cold climates, then 10W30 is acceptable as long as the manufacturer specifies that it is permissible to use it.

Is there a disadvantage to using an oil that flows better when cold, i.e. 5W30 versus 10W30?
Sometimes, but usually not. The crux of the issue is this: the bigger the difference between the cold oil viscosity and the hot oil viscosity, the more the volume of viscosity modifiers and the less the volume of base stock. If you are good about following the manufacturer's recommended oil change interval then stick with the 5W30 if that is the preferred oil for your vehicle, even if 10W30 is acceptable in warmer climates. Older cars may specify 10W30 only. This is because they need a little more viscosity when cold to keep a protective film on the cylinder walls. There have been instances where the larger amount of viscosity modifiers that are present in 5W30 have broken down due to excessive heat and have left carbon deposits on the valves, but this is extremely rare. The proper fix would be to reduce the excessive heat, but the workaround was to use an oil with less viscosity modifiers.

Source : http://www.nordicgroup.us/oil.htm#Oi...ynthetic%20oil

 

acording to acuras site now,

http://owners.acura.com/Maintenance/...x?link=whatoil

It only requires that you use a synthetic oil that carries a "starburst" cert..


doesnt say anything about "requiring" you to use mobil1 anymore, ( yes i know your manual says so but its obviously a few years old now )

but regardless of this matter, he is not going to blow his engine, or void his warrenty or catch aids or something.

I myself will not be using mobil1 in the rdx, it sure as hell wont ever get used in my subie. i would be trying out some amsoil due to the rep they have with better results with extended oci. not to mention being in vegas and summer is about to rear its ugly head, along with the quality of air, ( dusty ) that plays a big part in your oils life span.