Castrol GTX HM versus Maxlife conventional. GTX HM 5w30 is 12 cst at 100c, Maxlife is 10.6 at 100c. Me likee thicker oils. While Valvoline is more forthcoming on their product data sheets, listing zinc, phos, calcium and moly percentages by weight, Castrol tells you squat, saying only that it contains 'proprietary additives'. Is one better than the other? I bought a 4 liter jug plus 2 extra quarts of Maxlife at Canadian Tire on sale for my Sunfire's oil change tomorrow or Tuesday, weather depending. I plan on going 6000-6500 miles on the OCI. Based on what I noticed during my current 6500 mile OCI with GC, I'll probably have to add at least 1-1.5 quarts over the length of the OCI. I know it's odd (putting it mildly) to have such concern over my 500 dollar beater but I want the motor to last as long as it can. It has some piston slap, a lot when cold, and I'm not exactly easy on it. Should I not worry so much and just run the Maxlife, or return it and get the GTX HM?
Comparing these two oils..
- Thread starter 55Test
- Start date
- Status
stick with the maxlife.
If you like 12 cSt, you can mix Maxlife 10w30 with 10w40. About 50/50 will get you around the high side of 12 cSt.
No 10w40 Maxlife up here, all we get is the 5w30 and 10w30.
55 I am happy to see that you are using an oil that is easier on your wallet. I say stick with the maxlife it's on sale. I suspect with it being a true synthetic blend and it's lower cst you will get easier startup's.
Was in O'Reilly's the other day and noticed Maxlife in all grades. 5w30 10w30 10W-40 20W-50. Might give the 20W-50 a whirl on my next cycle oil change.
- Status
Similar threads
- Locked
- Locked