Do our VQs use normal oil or synthetic oil?

[MattB]

I was going through the records on my car that I got from Infiniti, and the car has documented oil changes every 3K at Infiniti dealers (good). But it occured to me that I have no idea whether to have the dealer change the oil with synthetic, normal, or blended oil the next time it's in. I suppose there could only be benefits from switching to synthetic (only have 67K on the car so it's not likely to develop leaks from a switch to synthetic), but on the flip side it's EXPENSIVE. What do our VQ30DE-Ks need?

[Beancooker]

The dealer will not use synthetic unless you ask for it. I personally use Q full synthetic. It is more expensive, but I will pay the extra if it makes the car last a little longer.

[jltibbs]

i have over 200,000 miles on my max and i still use Castrol GTX 5W-30. no synthetic whatsoever.

[MaximA32]

My '98 is just about to roll to 76k and I switched it to Mobil 1 synthetic the very first oil change I did. It's worth the extra money IMO. I also use factory Nissan oil filters.

[jltibbs]

i use purolator pure one oil filter (PL14610) and just change the oil every 3,000 mi.

[maxnix]

Take your own synthtetic oil, and M1 fliter from IoS and crush washer and the dealer may only charge you for labor.

I also envirolution my engines before the switch.

[MattB]

Well I called the dealer that did the last oil change on it (the dealer I bought it from) and they said they used a synthetic blend oil. Is it safe for me to go back to regular oil or go to synthetic or do I have to stay with the blend?

[jltibbs]

when the blend is used you can go either way, unless i'm mistaken. it's once you go with full synthetic that theres no turning back

[MattB]

I guess I'll have to see what the price differential is between synthetic and blend the next time I'm in for an oil change.

[jltibbs]

i have over 200,000 miles on my max and i still use Castrol GTX 5W-30. no synthetic whatsoever.

IMO synthetic is overrated

[A.Tech]

Best synthetic oil to get imo... is Mobil 1 Supersyn 5w30 for winter and 10w30 for summer... That is what I use with a M1 oil filter. ($55)

The owner before me had cheapo vavoline in it for a while... ugh... and I just used it for about 1000k and I changed it. Eventhough it is... expensive... It is better and last longer than non-synthetic oils and is more worth it. I just changed mine in oct and I have went 4k since then and I about about to change it once I hit around 6-7k. Eventhough they say you can do 9K with these oils I wouldn't for older cars llike ours with 100K plus on the engine because the oil gets dirty quick with all the racing/reving we do. haha...

And I have become to believe somehow that synthetic oil gets dirty faster and burns up more than normal oil. Could be just mine though, but after 3,500k my oil was about a quart down(No leaks) and the oil was black instead of a golden brown(what I am used too).