I'm looking at the Shell Rotella for my new to me FJ80. Whats the difference between T4, T5 and T6? I'll be keeping mine up in the Catskills of NY using it in winter. I'm thinking 15w40 would be fine. Any reason to jump down to 10w?
Recommendations On Engine Oil Weight 80 Series
- Thread starter sideways86
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I switched over to Rotella T4 in 15w-40 for about 1k miles and honestly I switched back to plain Jane Pennzoil 5w-30 high mileage. I absolutely love Rotella oil but the 15w-40 zapped my power a little and the motor pulled longer. It might not make sense but when I went back to 5w-30 it seemed happier. I still prefer Rotella as a superior oil for sure. Don't care for the smell though.
On a side note I switched my GX470 to Delo 5w-40 synthetic to test out and I really like it. Lost about 1mpg consistently over 2k miles so far though.
Might switch back to Rotella at the next oil change again just to make things confusing again.
On a side note I switched my GX470 to Delo 5w-40 synthetic to test out and I really like it. Lost about 1mpg consistently over 2k miles so far though.
Might switch back to Rotella at the next oil change again just to make things confusing again.
I'm most likely over thinking this like it seems a lot of us have, but perhaps I'll just go with the 15w40 and winter time I'm sure it will run fine
Autozone near me
Any diesel 15 40. The Valvoline is cheap. I like rotella too.
I read this thread and consulted with my best 80 friend and we are both still running DELO 400. Is there any reason all these people are running all these other synthetics? I'm just asking because I wonder if something would be better. I don't have any issues, but don't see Delo400 mentioned much here
BillyGoatMTB
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How's your Delo 400 15w-40 going in your fzj80? I have a 97 & am seeing about 1qt every 1500k, currently using Chevron 5w-30 Costco. I'm on the fence between rotella & Delo, always been a Chevron fan though. Thanks
Well, since my post I've switched over to Shell Rotella T6 15W-40 awhile back. The odometer just rolled over to 270k miles. Shell RotelIa was easy to find at my nearby Advance Auto and is cheap. As for oil consumption, I quit measuring my oil top offs so I can't tell if its better or not from a usage standpoint. For as often that I need to add oil, the cost of Shell is perfect for me. I'm certain my oil loss is through the valve guides and not so much across the rings, so improved oil control by switching brands/types is not as much of a concern for me. Never had the head off so I can't tell how much crosshatch is left on the cylinders.
BillyGoatMTB
SILVER Star
Thanks, my local Costco has delo 400 and in cheap on sale. Would you still use the delo at a good price over the T6?
I plan to build a new engine with a factory short block for an eventual Wit's end Turbo it's just not in the budget right now and I'm trying to get as much life as I can.
I would use either one, if you have easy access and the price is right. Chevron, Shell, Mobil, etc...I wouldn’t be afraid of any of these major brands. I think us picky owners (myself included), are more sensitive to oil brands than our engines are. These are durable engines that are designed to operate reliably in third world countries with substandard maintenance practices and cheap fluids. Modern engine oils are pretty good. I recommend picking a brand you trust ( Chevron delo is one I would use again), invest in an oil sample program such as Blackstone or Cat SOS, and change oils when needed. people get in to trouble when they stretch change intervals beyond the limits of the oil life. Good oil sampling will tell you when it’s time.
When I replaced the head gasket and rebuilt the head on my old 97, it quit using oil all together. Valve guides and fresh gaskets dried everything up.
BillyGoatMTB
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Awesome thanks
BillyGoatMTB
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Well oil consumption has vanished with 5k on the new motor build.
I think I'm going to switch from Chevron delo 400 15w40 to Lucas 10w30
COYS
SILVER Star
On my brand new OEM 1FZ-FE (minus valve cover), I ran Toyota conventional and Valvoline synthetic blend 5W-30 for the first three break-in friendly engine oil changes. Why 5W-30? Because Toyota recommends it.
At about 9K miles young, I made the switch to this...
Because...
Easily hit 80-85mph up the Grapevine no sweat. Cruises at 85mph pushing 37 KM3s, no complaints. Zero oil consumption since birth. Ask me how things are faring at 556K miles or 278K miles on my 80's 2nd 1FZ-FE.
If you're into the whole more zinc/moly the better internet theory, the data shows Redline as being off the charts. Gl!
At about 9K miles young, I made the switch to this...
Because...
Easily hit 80-85mph up the Grapevine no sweat. Cruises at 85mph pushing 37 KM3s, no complaints. Zero oil consumption since birth. Ask me how things are faring at 556K miles or 278K miles on my 80's 2nd 1FZ-FE.
If you're into the whole more zinc/moly the better internet theory, the data shows Redline as being off the charts. Gl!
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BillyGoatMTB
SILVER Star
Project farm, I dig his content.
Glad to hear your build is running well, I just finished a trip to Oregon and over the siskiyou pass a few times left me motivated to get that shortblock ordered. Fully loaded with the family and gear she did 65-70 floored. Can't complain.
The rebuild I just finished was intended to buy time and not miss out on wheeling trips this summer. I'm blown away at how well she runs now and look forward to the new build experience. More power would always be nice.
I have also been reading about IAC and a snorkel is on my short list of projects.
COYS
SILVER Star
Those passes in NorCal, S Oregon are no joke.
I’m sure the CO guys are chuckling at this.
BillyGoatMTB
SILVER Star
Hahaha right!Those passes in NorCal, S Oregon are no joke.
I’m sure the CO guys are chuckling at this.
I was climbing thinking I sure would like to have a little more on the pedal then I started thinking about all the stories I've read about Colorado.
In our defense the area around Mount Shasta and Ashland those passes are no joke.
My 1fz refresh/rebuild project was a lot of fun I'm looking forward to a brand new short block heading and cams in the future.
Anyone use liqui moly 15-w40?
