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Jan 8, 2023 | 06:46 AM

Justavet

Thread Starter

Trailering

Joined: Jan 2023

Posts: 19

Likes: 2

From: Florida

Oil

Went and got an oil change for my 97 f150 and they put 5w20 in instead of 5w30 would that cause problems? Should I replace the oil with the recommended type?

Jan 8, 2023 | 05:10 PM

Blondie70

Cross-Country

Joined: Nov 2014

Posts: 80

Likes: 15

I think you are ok....probably what the engine calls for anyway. Let 'er roll.

Jan 8, 2023 | 06:13 PM

WWR

Cargo Master

Joined: Dec 2015

Posts: 2,909

Likes: 503

I would totally let it go, not a concern

Jan 8, 2023 | 06:33 PM

Justavet

Thread Starter

Trailering

Joined: Jan 2023

Posts: 19

Likes: 2

From: Florida

Ok thank y’all so much for the responses 😎!

Jan 9, 2023 | 12:28 PM

J. Bruce

Cross-Country

Joined: Jun 2019

Posts: 95

Likes: 34

From: Southern Alberta

My 97 5.4 calls for 5w30 but my 2002 4.6 calls for 5w20 and these are very similar engines. I agree that you will be okay.

Jan 9, 2023 | 02:48 PM

Justavet

Thread Starter

Trailering

Joined: Jan 2023

Posts: 19

Likes: 2

From: Florida

Also I’ve the dreaded white sludge but only up around the top of the oil fill tube nothing else in the crankcase or oil pan.

Jan 10, 2023 | 11:18 AM

manicmechanic007

Hotshot

Joined: Jul 2020

Posts: 10,268

Likes: 2,563

From: Near Salt Lake City

As a Ford tech, I cringed each couple of years as they thinned out the oils in search of fuel mileage (all of us did I think)
The thin oil is a necessity with the closer piston and bearing clearances the new engines have
Real glad to see some manufacturers bringing back the thicker stuff like BMW 0-50, 5-40 and the like