What weight oil, 5w-30 or 10w-30?
#19
Re: What weight oil, 5w-30 or 10w-30?
I would not use anything thicker than 10W-30. 10-40, 15-40, 20-50 straight 30w are all too thick. 90% of harmful engine wear comes on start up. Thinner oils lubricate better at startup. Thicker oil gives higher oil pressure but less flow.
I recommend 5W-30 year round. If its an extremely hot climate then use 10W-30.
I recommend 5W-30 year round. If its an extremely hot climate then use 10W-30.
#20
Re: What weight oil, 5w-30 or 10w-30?
#22
Re: What weight oil, 5w-30 or 10w-30?
Originally Posted by DiabloGT
what do you guys think of amsoil 10w-40? would you guys really believe the 25,000 mile change or no? and what kind of filter would be best for it?
thanks
thanks
#24
Re: What weight oil, 5w-30 or 10w-30?
So I'm guessing that the 5w-30 is fine for my car and weather conditions? The weather is weird here compared to the rest of the country. Only in NE Ohio can you run the heater and air conditioner on the same day.
#25
Re: What weight oil, 5w-30 or 10w-30?
Originally Posted by 97WS6Pilot
I would not use anything thicker than 10W-30. 10-40, 15-40, 20-50 straight 30w are all too thick. 90% of harmful engine wear comes on start up. Thinner oils lubricate better at startup. Thicker oil gives higher oil pressure but less flow.
I recommend 5W-30 year round. If its an extremely hot climate then use 10W-30.
I recommend 5W-30 year round. If its an extremely hot climate then use 10W-30.
PLEASE everyone look at that link I posted, most of you will find out just how WRONG you are in that you thought you knew about oil. If you search in the UOA section for "LT1" you can find out exactly what wildly popular oil for this motor performs poorly is the most commonly used weight and can find out what actually does work well. Talking real measured data in personal vehicles, not some ball bearing marketting gimmick or "used such and such forever" crap.
Think of it as dyno charts and timeslips for oil, those are all that matter in proving a performance mods worth right.
#26
Re: What weight oil, 5w-30 or 10w-30?
Originally Posted by DiabloGT
do you think 0-30 is good for warm-hot weather? and what brand oil filter would you use to 10k miles? mobil? bosch?
I use either amsoil, or ac delco filters usually. Just amsoil filters for the Z though.
#28
#29
Re: What weight oil, 5w-30 or 10w-30?
#30
Re: What weight oil, 5w-30 or 10w-30?
I run the thinnest oil I can that still gives decent oil pressure... less to turn the pump/more horsepower!!
Who the hell needs 40 psi at idle lol... as long as I have 10-20 psi, I don't worry about it.
I purposely built my motor loose so that I wouldn't have high oil pressure. Oils better at start-up, too.
Who the hell needs 40 psi at idle lol... as long as I have 10-20 psi, I don't worry about it.
I purposely built my motor loose so that I wouldn't have high oil pressure. Oils better at start-up, too.