Infiniti I30/I35 Similar to a Maxima, yet not really a Maxima. Discussion forum on Nissan's luxury model, the Infiniti I30/I35

Motor Oil 5W-30 Synthetic Blend

Old 11-07-2018, 11:43 AM
Junior Member
Thread Starter
Join Date: Apr 2004
Posts: 65
Motor Oil 5W-30 Synthetic Blend

I have 2002 I35 with 170K miles on it. For years I was using conventional Castrol GTX 5W-30 for regular oil change. Castrol has eliminated conventional 5W-30 in 2016 and started using synthetic blend for GTX ultraclean and for GTX High Mileage oil. I stayed with Castrol and started using GTX high mileage. I was not happy with switching from conventional to synthetic blend but proffered to stay with Castrol brand. The car has developed small oil leaks, so once in while there is a smell of burning oil.
I could be from the age of the car where seal have deteriorated or could be from using synthetic blend oil.

What is your opinion on this subject and what is your experience if you are using synthetic blend?
Thank you
osetleo is offline  
Old 11-07-2018, 02:23 PM
Join Date: Dec 2015
Posts: 132
You open up a can of worms whenever you bring up motor oil-- everyone has their own opinion and everyone else's opinion is wrong.
Here's mine: Just switch to another brand. Why do you have to stick with Castrol? Hell I use WalMart SuperTech in mine and it's fine, it's what I used in my Maxima and I put over 400k miles on that thing. Or if you insist on a name brand, switch to Valvoline. It's almost always ranked at the top of motor oil ratings lists, and they still offer 5W-30 conventional. $18 for a 5qt jug of it at WalMart.
sb001 is offline  
Related Topics
Thread Starter
Last Post
3rd Generation Maxima (1989-1994)
12-21-2010 05:07 PM
Fluids and Lubricants
11-17-2007 06:13 AM
Fluids and Lubricants
03-12-2004 04:16 PM
4th Generation Maxima (1995-1999)
04-01-2003 04:45 PM
5th Generation Maxima (2000-2003)
05-10-2002 07:40 PM

Thread Tools
Search this Thread
Quick Reply: Motor Oil 5W-30 Synthetic Blend

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.