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For a 1973 Pontiac 400 ci engine, it's recommended to use a high-quality motor oil with a viscosity of 10W-30 or 10W-40, especially if the engine is not heavily modified. If the engine has been rebuilt or is in good condition, consider using a synthetic blend or full synthetic oil for better protection and performance. Always check the owner's manual for specific recommendations and consider the local climate when selecting oil viscosity. Additionally, using an oil with higher zinc content can be beneficial for older engines to protect against wear.
What else can I help you with?
Does a 1978 Trans Am 403 V8 use the same engine parts as a 400 V8?
NO. 403 is an Oldsmobile engine 400 is Pontiac engine no it dows not i have a Pontiac 400. uses diff. parts not interchangeable.403 is Oldsmobile
How much oil does a 1998 Pontiac grand am use?
it shouldn't use any
What oil is used 1998 400 Yamaha grizzly 400?
You can use 10W30 or 20w50.
When do you change oil Pontiac g3?
use synthetic every 7500.
What is the oil capacity of a 89 Pontiac sunbird?
4 Liters if you use a standard recommended oil filter.
What causes Low oil pressure on a 92 Pontiac Bonneville ssei?
Pontiac oil pressure can be tricky! Check with your mechanic first but from my experience with my Pontiac use 10w-40 oil in the winter and 20w-50 in the summer. That has produced better pressure in mine.
Does the 2002 Pontiac Grand Prix GTP require special oil?
no. you can use any oil in the engine. But only use GM supercharger oil for the supercharger.
What kind of oil should you use in a 1991 Pontiac firebird take?
I use 10W-30
What oil do you use in a Honda cbr 400?
For the Honda CBR 400 basic oil is used for the motor. You can purchase the oil at a local auto parts store such as auto zone.
What kind of oil do you need for your polaris sport 400?
The Polaris 400 Sport can use any as a be certified motor oil. The manufacturer recommends a 10W-30 motor oil.
You have the belt set up from a 1968 Pontiac Bonneville with a 400 engine was replaced with a 1973 Pontiac grand ville with a 455 The water pump shaft is too long and the pulleys do not line up what?
you probibly need to change the water pump to a newer year. there is no difference between the 400 and the 455 besides the year. if you use the pump for the 455 it should work or go to the salvage yard and get pully setup for the 455.
2008 Pontiac G8 oil weight to use?
5 w 30
