oil for 2.5 altima

Joined
Jun 26, 2008
Messages
4
Location
ct, usa
I don't know if it's just our altima or if it's all of them, but this engine is freakin noisy. There's a terrible valve tick until fully warmed up and even when warm it's still noisy. I'm running a nissan oil filter and gtx 5-30. I've tried PP 5-30 and didn't think it was any better but I was running a k&n oil filter at the time. Is there any other oil that might make this thing a little quieter? Ohh yeah it's an 08 with like 15,000 miles.
 
Joined
Feb 26, 2009
Messages
62
Location
Topeka, KS
I think Nissan may have a TSB on this problem...something about the timing chain tension arm springs. Call your dealer and see if your car is included in the TSB.
 
Joined
Feb 5, 2009
Messages
205
Location
Missoula
I have driven literally dozens of the 2.5L Altimas from 04-09(Rentals) and every one of them ticks like no other engine i've driven, all have ranged from >10mi. to 30,000+mi., all the same. If they cant quiet the engine, they should insulate the cabin with super space foam, it is sort of annoying.
 
Joined
Sep 5, 2008
Messages
4,627
Location
Western Washington
Evidently it has to do with a heat sink on your engine, Nissan is sending letters to buyers about the problem. Your dealer should know about it and repair it under warranty for you.
 
Joined
Jul 27, 2006
Messages
2,370
Location
Southwest Virginia
I also have a 2008 Altima with the 2.5 engine and 12,500 miles. I would say mine is a little noisy when cold (rattling as opposed to distinct ticking), but quiets down when warmed up to a smooth muffled throaty sound. I ran two 4k OCIs on factory fill oil, then one 4k OCI on M1 EP 5W-30 (with a quart of 15W-50 EP added). I saw no change in engine noise among the different oils, only engine temperature seems to affect it. Nissan has long had a problem with heat shield noise, but that sound (on my wife's Sentra) was much different than the cold engine sound I get on my Altima. I fixed the Sentra heat shield noise my just jamming a ball of aluminum foil between the shield and the exhaust pipe. Tom NJ
 
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