Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - 1999 Chevy K2500 Suburban 6.5 Diesel (Automatic)

101Volts · 03-25-2017, 08:10 PM

Latest reports:

1: Replaced CDR (PCV) Valve as it was leaking oil. Oil usage reduced, I'm not sure if it helps with anything else.

2: Plan to install new Oil Cooler Lines purchased from Lubrication Specialist (linked below,) the stock ones are prone to leaking and blowing due to their design. I read gas versions are like that too but don't know if they are.

97 and Later 6.5TD Oil Cooler Lines: Espar Heater Parts, Diesel Truck Heaters - Lubrication Specialist

3: Still have the Oil Bypass Filter Kit which I also plan to install after installing the lines.

4: Made cardboard template for rear wheel skirting.

5: Planning to make skirting under the side steps after working on the lines and bypass system.

6: Planning to make modifications to the front air dam for better airflow and structural support.

7: Purchased Fuel Additives:

Opti-Lube Boost!: Claims to increase Diesel Fuel's Cetane (ignitability) rating by 7-9 (or 11 if you read the sales brochure) points which quiets the engine, decreases emissions, increases performance and MPG.

Opti-Lube XL: Fuel Lubricity Improver. My engine was built before ULSD Fuel came about and this is supposed to reduce wear on fuel system components.

I haven't tried the fuel additives yet. After overtreating the first time I'll use Boost at the max treat rate and XL near the max treat rate.

Another note: Opti-Lube makes another fuel additive, "XPD" (favorably mentioned in the thread linked below) but it's more of an an all-around additive that doesn't increase cetane or lubricity as much.

http://ecomodder.com/forum/showthrea...ive-26910.html

03-25-2017, 08:10 PM	#82 (permalink)
101Volts Master EcoModder Join Date: Dec 2012 Location: Pennsylvania Posts: 506 Woody - '90 Mercury Grand Marquis Wagon LS Last 3: 19.57 mpg (US) Brick - '99 Chevrolet K2500 Suburban LS Last 3: 12.94 mpg (US) M. C. - '01 Chevrolet Impala Base 90 day: 18.73 mpg (US) R. J. - '05 Ford Explorer 4wd 90 day: 16.66 mpg (US) Thanks: 936 Thanked 34 Times in 28 Posts	Latest reports: 1: Replaced CDR (PCV) Valve as it was leaking oil. Oil usage reduced, I'm not sure if it helps with anything else. 2: Plan to install new Oil Cooler Lines purchased from Lubrication Specialist (linked below,) the stock ones are prone to leaking and blowing due to their design. I read gas versions are like that too but don't know if they are. 97 and Later 6.5TD Oil Cooler Lines: Espar Heater Parts, Diesel Truck Heaters - Lubrication Specialist 3: Still have the Oil Bypass Filter Kit which I also plan to install after installing the lines. 4: Made cardboard template for rear wheel skirting. 5: Planning to make skirting under the side steps after working on the lines and bypass system. 6: Planning to make modifications to the front air dam for better airflow and structural support. 7: Purchased Fuel Additives: Opti-Lube Boost!: Claims to increase Diesel Fuel's Cetane (ignitability) rating by 7-9 (or 11 if you read the sales brochure) points which quiets the engine, decreases emissions, increases performance and MPG. Opti-Lube XL: Fuel Lubricity Improver. My engine was built before ULSD Fuel came about and this is supposed to reduce wear on fuel system components. I haven't tried the fuel additives yet. After overtreating the first time I'll use Boost at the max treat rate and XL near the max treat rate. Another note: Opti-Lube makes another fuel additive, "XPD" (favorably mentioned in the thread linked below) but it's more of an an all-around additive that doesn't increase cetane or lubricity as much. http://ecomodder.com/forum/showthrea...ive-26910.html __________________ Last edited by 101Volts; 03-25-2017 at 08:18 PM..