HELP! Severe acceleration lag

juld0zer · 08-05-2014, 03:58 AM

looks like my joy was short lived. it was inevitable that the issue would eventually resurface but now it is more difficult to reproduce and it will occur in unpredictable circumstances. before i took it in, it would happen pretty much within 25mins of casual driving from the first start of the day.

so far i've had it happen mainly after driving for about 35mins or more, or whenever the coolant temp stays above 90*c for a while. but there was one time during a 1.5 non stop drive including heavy traffic crawling where the lag did not occur at all!! so that occurrence certainly makes my temperature related theory a bit muddy.

i was due for an oil change today. changed the oil to Valvoline 5w30 MST with the same model mobil 1 filter (108). Prior, i was running Nulon 5w40. viscosity is important for the VVT solenoid function so if Nissan designed the engine for 5w30 worldwide, i will run 5w30 until the issue is sorted (got lots of 0w40 and 5w40 at home)

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08-05-2014, 03:58 AM	#11 (permalink)
juld0zer Enthusiast Member Join Date: Nov 2012 Location: Sydney Posts: 428 Drives: 11 Nissan 370Z MB M6 Rep Power: 140	looks like my joy was short lived. it was inevitable that the issue would eventually resurface but now it is more difficult to reproduce and it will occur in unpredictable circumstances. before i took it in, it would happen pretty much within 25mins of casual driving from the first start of the day. so far i've had it happen mainly after driving for about 35mins or more, or whenever the coolant temp stays above 90*c for a while. but there was one time during a 1.5 non stop drive including heavy traffic crawling where the lag did not occur at all!! so that occurrence certainly makes my temperature related theory a bit muddy. i was due for an oil change today. changed the oil to Valvoline 5w30 MST with the same model mobil 1 filter (108). Prior, i was running Nulon 5w40. viscosity is important for the VVT solenoid function so if Nissan designed the engine for 5w30 worldwide, i will run 5w30 until the issue is sorted (got lots of 0w40 and 5w40 at home)