max ride 41

iTrader: (4)

i know this is a hashed over question, but i have to ask it again, i have been using wolfs head 5 or 10 w30 as i find the old girl seems to love it. she runs quiet and seems to idle smoother imo. i will put a oem filter on as well when i remember.

Maxima 97 SE

Turbobink

iTrader: (2)

Rotella T6 5W-40 ...

DennisMik

iTrader: (2)

Been using Valvoline MaxLife in my cars.

JvG

I bought my Maxima in 2006. It had 100k on it.

I found a couple of receipts in it for Mobile One
Synthetic.

​​​​​​I have continued use of synthetic oil. Either. Mobil One or O Reilys. Usually 5-30, sometimes 10-30. My car is generally used on the highway.
My oil change interval is around 6000-8000 miles.

My car has about 215k on it now.
My engine still has good compression.

I removed the lower oil pan when I replaced my water pump at about 200k. I saw no sludge or deposits at all. Just a very clean engine.

​​​​​

maximaxi

Castrol Edge 0w30

DizzyEdge

Being that 30 weight oil is specified, is there any negative issues with using 40 weight, other than perhaps slightly less fuel economy?

Turbobink

iTrader: (2)

It's my opinion, which is based on reading I've done over the decades, that if a 40 weight is used in applications where a 30 weight is specified, synthetics are a better choice based on their flow characteristics.

Typically, a synthetic will flow similar to a conventional of the lower specification ... meaning, when hot a 40 weight synthetic will flow similar to a 30 weight conventional.

If you choose your [x]W-40 wisely, there should be no down-side.

I have found that my mileage using a 10W-30 (synthetic or conventional) as opposed to the 5W-40 (synthetic) doesn't change in the least.

ChrisMan287

iTrader: (34)

Amsoil FTW.

JSutter

iTrader: (46)

I used to use 5w-30 Mobil One full synthetic. I put 7,000 a year at most so only 2 oil changes a year. I removed the valve covers for a 00VI swap and did not like what I saw at 136k. It was very dirty inside compared to the much higher milage donor DEK. It got me thinking.

I switched to Pennzoil conventional, either regular or high milage, for all my vehicles. I can't say if it made a difference on the inside. At least I save a few dollars. With what little miles I put on my vehicles I should just change it every 3 months.