So the recommended interval by the dealership with regular oil is 8,000KM (5,000Mi)
However I've been using synthetic for the past few oil changes
Does this affect the OCI? Can I run the synthetic for higher mileage? (10,000-12,000KM......which is roughly 6200-7500Mi)

For the record I drive a IS250 (if the whole carbon thing affects this question), as well I normally use Eneos Synthetic

Thanks

 

Aren't these cars [pretty much any Lexus post '06] not running synthetic out of the factory? I remember talking to one of the service guys at a Lexus dealer and he was telling me something like that.

8K is a synthetic mileage time frame by the sound of it. This can turn into an ugly debate, but I suggest reading up on bobistheoilguy.com to see what those nerds have to say since they all do oil analysis tests and such to determine what the best oil is/filter/breakdown period, etc. to come to a sound conclusion on what is good for you.

Huh, even google comes up with this thread when simply searching "Eneos oil canada"; http://www.bobistheoilguy.com/forums...Number=2383623

 

No on the factory fill synthetic. The only ones that do are the LFA and the IS-F.

I always follow the manufacturer's intervals for service, synthetic or otherwise. I just go with a regular fully synthetic oil, none of the extended interval or high mileage stuff. Hasn't failed me in over a decade.

 

No I don't mean I do synthetic from dealership

I mean the dealer-recommended OCI is 8,000KM (5,000Mi) on regular oil
I do oil change outside of the dealer and use synthetic oil
So wondering if I should still follow same OCI or can I follow a longer OCI

 

I always wondering whether or not the filter can handle the extended OCI's, I am not at all worried about the oil making it that long.